GCC Code Coverage Report

Directory: ../
File: src/typechecker/TypeChecker.cpp
Date: 2024-12-24 01:17:15
Exec Total Coverage
Lines: 1504 1578 95.3%
Functions: 81 82 98.8%
Branches: 2462 4675 52.7%
Line Branch Exec Source
1 // Copyright (c) 2021-2024 ChilliBits. All rights reserved.
2
3 #include "TypeChecker.h"
4
5 #include <SourceFile.h>
6 #include <ast/ASTBuilder.h>
7 #include <ast/Attributes.h>
8 #include <global/GlobalResourceManager.h>
9 #include <symboltablebuilder/ScopeHandle.h>
10 #include <symboltablebuilder/SymbolTableBuilder.h>
11 #include <typechecker/MacroDefs.h>
12 #include <typechecker/TypeMatcher.h>
13
14 namespace spice::compiler {
15
16 4327 TypeChecker::TypeChecker(GlobalResourceManager &resourceManager, SourceFile *sourceFile, TypeCheckerMode typeCheckerMode)
17
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 4327 : CompilerPass(resourceManager, sourceFile), typeCheckerMode(typeCheckerMode), warnings(sourceFile->compilerOutput.warnings) {
18 4327 }
19
20 4536 std::any TypeChecker::visitEntry(EntryNode *node) {
21 // Initialize
22 4536 currentScope = rootScope;
23
24 // Initialize AST nodes with size of 1
25 4536 const bool isPrepare = typeCheckerMode == TC_MODE_PRE;
26
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 4536 if (isPrepare)
27 868 node->resizeToNumberOfManifestations(1);
28
29 // Visit children
30
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 4536 visitChildren(node);
31
32 // Check which implicit structures we need for each struct, defined in this source file
33
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 4492 if (isPrepare) {
34
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 854 const std::vector<const Struct *> manifestations = rootScope->getAllStructManifestationsInDeclarationOrder();
35
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 1393 for (const Struct *manifestation : manifestations) {
36 // Check if we need to create a default ctor, copy ctor or dtor
37
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 539 createDefaultCtorIfRequired(*manifestation, manifestation->scope);
38
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 539 createDefaultCopyCtorIfRequired(*manifestation, manifestation->scope);
39
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 539 createDefaultDtorIfRequired(*manifestation, manifestation->scope);
40 }
41 854 }
42
43
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 4492 return nullptr;
44 }
45
46 723 std::any TypeChecker::visitMainFctDef(MainFctDefNode *node) {
47
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 723 if (typeCheckerMode == TC_MODE_PRE)
48 343 return visitMainFctDefPrepare(node);
49 else
50 380 return visitMainFctDefCheck(node);
51 }
52
53 31717 std::any TypeChecker::visitFctDef(FctDefNode *node) {
54
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 31717 if (typeCheckerMode == TC_MODE_PRE)
55 4247 return visitFctDefPrepare(node);
56 else
57 27470 return visitFctDefCheck(node);
58 }
59
60 21261 std::any TypeChecker::visitProcDef(ProcDefNode *node) {
61
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 21261 if (typeCheckerMode == TC_MODE_PRE)
62 2701 return visitProcDefPrepare(node);
63 else
64 18560 return visitProcDefCheck(node);
65 }
66
67 3583 std::any TypeChecker::visitStructDef(StructDefNode *node) {
68
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 3583 if (typeCheckerMode == TC_MODE_PRE)
69 544 return visitStructDefPrepare(node);
70 else
71 3039 return visitStructDefCheck(node);
72 }
73
74 416 std::any TypeChecker::visitInterfaceDef(InterfaceDefNode *node) {
75
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 416 if (typeCheckerMode == TC_MODE_PRE)
76 74 return visitInterfaceDefPrepare(node);
77
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 342 return nullptr;
78 }
79
80 121 std::any TypeChecker::visitEnumDef(EnumDefNode *node) {
81
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 121 if (typeCheckerMode == TC_MODE_PRE)
82 38 return visitEnumDefPrepare(node);
83
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 83 return nullptr;
84 }
85
86 5544 std::any TypeChecker::visitGenericTypeDef(GenericTypeDefNode *node) {
87
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 5544 if (typeCheckerMode == TC_MODE_PRE)
88 722 return visitGenericTypeDefPrepare(node);
89
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 4822 return nullptr;
90 }
91
92 112 std::any TypeChecker::visitAliasDef(AliasDefNode *node) {
93
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 112 if (typeCheckerMode == TC_MODE_PRE)
94 30 return visitAliasDefPrepare(node);
95
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 82 return nullptr;
96 }
97
98 4635 std::any TypeChecker::visitGlobalVarDef(GlobalVarDefNode *node) {
99
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 4635 if (typeCheckerMode == TC_MODE_PRE)
100 734 return visitGlobalVarDefPrepare(node);
101
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 3901 return nullptr;
102 }
103
104 4461 std::any TypeChecker::visitExtDecl(ExtDeclNode *node) {
105
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 4461 if (typeCheckerMode == TC_MODE_PRE)
106 701 return visitExtDeclPrepare(node);
107
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 3760 return nullptr;
108 }
109
110 1419 std::any TypeChecker::visitImportDef(ImportDefNode *node) {
111
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 1419 if (typeCheckerMode == TC_MODE_PRE)
112 361 return visitImportDefPrepare(node);
113
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 1058 return nullptr;
114 }
115
116 1661 std::any TypeChecker::visitUnsafeBlock(UnsafeBlockNode *node) {
117 // Change to unsafe block body scope
118
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 1661 ScopeHandle scopeHandle(this, node->getScopeId(), ScopeType::UNSAFE_BODY);
119
120 // Visit body
121
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 1661 visit(node->body);
122
123
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 3322 return nullptr;
124 1661 }
125
126 1049 std::any TypeChecker::visitForLoop(ForLoopNode *node) {
127 // Change to for body scope
128
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 1049 ScopeHandle scopeHandle(this, node->getScopeId(), ScopeType::FOR_BODY);
129
130 // Visit loop variable declaration
131
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 1049 visit(node->initDecl);
132
133 // Visit condition
134
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 1049 const QualType conditionType = std::any_cast<ExprResult>(visit(node->condAssign)).type;
135
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 1049 HANDLE_UNRESOLVED_TYPE_PTR(conditionType)
136 // Check if condition evaluates to bool
137
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 1049 if (!conditionType.is(TY_BOOL))
138
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 3 SOFT_ERROR_ER(node->condAssign, CONDITION_MUST_BE_BOOL, "For loop condition must be of type bool")
139
140 // Visit incrementer
141
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 1048 visit(node->incAssign);
142
143 // Visit body
144
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 1048 visit(node->body);
145
146
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 1048 return nullptr;
147 1049 }
148
149 91 std::any TypeChecker::visitForeachLoop(ForeachLoopNode *node) {
150 // Visit iterator assignment
151 91 AssignExprNode *iteratorNode = node->iteratorAssign;
152
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 91 QualType iteratorOrIterableType = std::any_cast<ExprResult>(visit(iteratorNode)).type;
153
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 91 HANDLE_UNRESOLVED_TYPE_PTR(iteratorOrIterableType)
154
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 91 iteratorOrIterableType = iteratorOrIterableType.removeReferenceWrapper();
155
156 // Retrieve iterator type
157 91 QualType iteratorType = iteratorOrIterableType;
158
159
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 91 if (iteratorOrIterableType.isIterable(node)) {
160 72 const QualType &iterableType = iteratorOrIterableType;
161
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 72 if (iteratorOrIterableType.isArray()) { // Array
162
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 16 const NameRegistryEntry *nameRegistryEntry = sourceFile->getNameRegistryEntry(ARRAY_ITERATOR_NAME);
163
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 8 if (!nameRegistryEntry) {
164
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 1 softError(node, UNKNOWN_DATATYPE, "Forgot to import \"std/iterator/array-iterator\"?");
165
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 1 return nullptr;
166 }
167 7 nameRegistryEntry->targetEntry->used = nameRegistryEntry->importEntry->used = true;
168 7 Scope *matchScope = nameRegistryEntry->targetScope->parent;
169
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 7 assert(matchScope->type == ScopeType::GLOBAL);
170
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 7 QualType unsignedLongType(TY_LONG);
171
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 7 unsignedLongType.makeUnsigned(true);
172
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 14 const ArgList argTypes = {Arg(iterableType, false), Arg(unsignedLongType, false)};
173
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 7 const QualType thisType(TY_DYN);
174
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 21 node->getIteratorFct = FunctionManager::match(this, matchScope, "iterate", thisType, argTypes, {}, true, iteratorNode);
175 7 } else { // Struct, implementing Iterator interface
176
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 64 Scope *matchScope = iterableType.getBodyScope();
177
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 192 node->getIteratorFct = FunctionManager::match(this, matchScope, "getIterator", iterableType, {}, {}, true, iteratorNode);
178 }
179
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 71 if (node->getIteratorFct == nullptr)
180
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 3 throw SemanticError(iteratorNode, INVALID_ITERATOR, "No getIterator() function found for the given iterable type");
181
182 70 iteratorType = QualType(node->getIteratorFct->returnType);
183 // Create anonymous entry for the iterator
184
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 70 currentScope->symbolTable.insertAnonymous(iteratorType, iteratorNode);
185 }
186
187 // Change to foreach body scope
188
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 89 ScopeHandle scopeHandle(this, node->getScopeId(), ScopeType::FOREACH_BODY);
189
190 // Check iterator type
191
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 89 if (!iteratorType.isIterator(node)) {
192 const std::string errMsg =
193 "Can only iterate over arrays or data structures, inheriting from IIterator or IIterable. You provided " +
194
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 1 iteratorType.getName(false);
195
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 1 softError(node->iteratorAssign, OPERATOR_WRONG_DATA_TYPE, errMsg);
196
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 1 return nullptr;
197 1 }
198
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 88 const QualTypeList &iteratorTemplateTypes = iteratorType.getTemplateTypes();
199
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 88 if (iteratorTemplateTypes.empty())
200
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 3 SOFT_ERROR_ER(node->iteratorAssign, INVALID_ITERATOR,
201 "Iterator has no generic arguments so that the item type could not be inferred")
202
203 87 const bool hasIdx = node->idxVarDecl;
204
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 87 if (hasIdx) {
205 // Visit index declaration or assignment
206
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 6 auto indexType = std::any_cast<QualType>(visit(node->idxVarDecl));
207
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 6 HANDLE_UNRESOLVED_TYPE_PTR(indexType)
208 // Check if index type is int
209
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 6 if (!indexType.is(TY_LONG))
210
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 1 SOFT_ERROR_ER(node->idxVarDecl, FOREACH_IDX_NOT_LONG,
211 "Index in foreach loop must be of type long. You provided " + indexType.getName(false))
212 }
213
214 // Retrieve .get(), .getIdx(), .isValid() and .next() functions
215
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 86 Scope *matchScope = iteratorType.getBodyScope();
216 86 QualType iteratorItemType;
217
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 86 if (hasIdx) {
218
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 15 node->getIdxFct = FunctionManager::match(this, matchScope, "getIdx", iteratorType, {}, {}, false, node);
219
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 5 assert(node->getIdxFct != nullptr);
220
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 5 iteratorItemType = node->getIdxFct->returnType.getTemplateTypes().back();
221 } else {
222
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 243 node->getFct = FunctionManager::match(this, matchScope, "get", iteratorType, {}, {}, false, node);
223
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 81 assert(node->getFct != nullptr);
224 81 iteratorItemType = node->getFct->returnType;
225 }
226
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 258 node->isValidFct = FunctionManager::match(this, matchScope, "isValid", iteratorType, {}, {}, false, node);
227
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 86 assert(node->isValidFct != nullptr);
228
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 258 node->nextFct = FunctionManager::match(this, matchScope, "next", iteratorType, {}, {}, false, node);
229
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 86 assert(node->nextFct != nullptr);
230
231 // Retrieve item variable entry
232
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 86 SymbolTableEntry *itemVarSymbol = currentScope->lookupStrict(node->itemVarDecl->varName);
233
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 86 assert(itemVarSymbol != nullptr);
234
235 // Check type of the item
236
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 86 auto itemType = std::any_cast<QualType>(visit(node->itemVarDecl));
237
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 86 HANDLE_UNRESOLVED_TYPE_PTR(itemType)
238
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 86 if (itemType.is(TY_DYN)) { // Perform type inference
239 // Update evaluated symbol type of the declaration data type
240
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 4 node->itemVarDecl->dataType->setEvaluatedSymbolType(iteratorItemType, manIdx);
241 // Update item type
242 4 itemType = iteratorItemType;
243 } else {
244 // Check item type
245 82 const ExprResult itemResult = {itemType, itemVarSymbol};
246 82 const ExprResult iteratorItemResult = {iteratorItemType, nullptr /* always a temporary */};
247
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 82 (void)opRuleManager.getAssignResultType(node->itemVarDecl, itemResult, iteratorItemResult, true, false, ERROR_FOREACH_ITEM);
248 }
249
250 // Update type of item
251
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 85 itemVarSymbol->updateType(itemType, true);
252
253 // Visit body
254
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 85 visit(node->body);
255
256
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 85 return nullptr;
257 89 }
258
259 468 std::any TypeChecker::visitWhileLoop(WhileLoopNode *node) {
260 // Change to while body scope
261
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 468 ScopeHandle scopeHandle(this, node->getScopeId(), ScopeType::WHILE_BODY);
262
263 // Visit condition
264
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 468 const QualType conditionType = std::any_cast<ExprResult>(visit(node->condition)).type;
265
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 467 HANDLE_UNRESOLVED_TYPE_PTR(conditionType)
266 // Check if condition evaluates to bool
267
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 467 if (!conditionType.is(TY_BOOL))
268
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 3 SOFT_ERROR_ER(node->condition, CONDITION_MUST_BE_BOOL, "While loop condition must be of type bool")
269
270 // Visit body
271
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 466 visit(node->body);
272
273
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 466 return nullptr;
274 468 }
275
276 9 std::any TypeChecker::visitDoWhileLoop(DoWhileLoopNode *node) {
277 // Change to while body scope
278
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 9 ScopeHandle scopeHandle(this, node->getScopeId(), ScopeType::WHILE_BODY);
279
280 // Visit body
281
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 9 visit(node->body);
282
283 // Visit condition
284
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 9 const QualType conditionType = std::any_cast<ExprResult>(visit(node->condition)).type;
285
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 9 HANDLE_UNRESOLVED_TYPE_PTR(conditionType)
286 // Check if condition evaluates to bool
287
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 9 if (!conditionType.is(TY_BOOL))
288
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 3 SOFT_ERROR_ER(node->condition, CONDITION_MUST_BE_BOOL, "Do-While loop condition must be of type bool")
289
290
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 8 return nullptr;
291 9 }
292
293 3030 std::any TypeChecker::visitIfStmt(IfStmtNode *node) {
294 // Change to then body scope
295
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 3030 ScopeHandle scopeHandle(this, node->getScopeId(), ScopeType::IF_ELSE_BODY);
296
297 // Visit condition
298
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 3030 const QualType conditionType = std::any_cast<ExprResult>(visit(node->condition)).type;
299
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 3028 HANDLE_UNRESOLVED_TYPE_PTR(conditionType)
300 // Check if condition evaluates to bool
301
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 3027 if (!conditionType.is(TY_BOOL))
302
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 6 SOFT_ERROR_ER(node->condition, CONDITION_MUST_BE_BOOL, "If condition must be of type bool")
303
304 // Warning for bool assignment
305
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 3025 if (node->condition->op == AssignExprNode::OP_ASSIGN)
306
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 1 sourceFile->compilerOutput.warnings.emplace_back(node->condition->codeLoc, BOOL_ASSIGN_AS_CONDITION,
307 "If you want to compare the values, use '=='");
308
309 // Visit body
310
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 3025 visit(node->thenBody);
311
312 // Leave then body scope
313
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 3025 scopeHandle.leaveScopeEarly();
314
315 // Visit else statement if existing
316
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 3025 if (node->elseStmt)
317
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 141 visit(node->elseStmt);
318
319
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 3025 return nullptr;
320 3030 }
321
322 141 std::any TypeChecker::visitElseStmt(ElseStmtNode *node) {
323 // Visit if statement in the case of an else if branch
324
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 141 if (node->isElseIf) {
325
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 42 visit(node->ifStmt);
326
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 42 return nullptr;
327 }
328
329 // Change to else body scope
330
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 99 ScopeHandle scopeHandle(this, node->getScopeId(), ScopeType::IF_ELSE_BODY);
331
332 // Visit body
333
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 99 visit(node->body);
334
335
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 99 return nullptr;
336 99 }
337
338 8 std::any TypeChecker::visitSwitchStmt(SwitchStmtNode *node) {
339 // Check expression type
340
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 8 const QualType exprType = std::any_cast<ExprResult>(visit(node->assignExpr)).type;
341
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 8 HANDLE_UNRESOLVED_TYPE_PTR(exprType)
342
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 8 if (!exprType.isOneOf({TY_INT, TY_SHORT, TY_LONG, TY_BYTE, TY_CHAR, TY_BOOL}))
343
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 3 SOFT_ERROR_ER(node->assignExpr, SWITCH_EXPR_MUST_BE_PRIMITIVE,
344 "Switch expression must be of int, short, long, byte, char or bool type")
345
346 // Visit children
347
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 7 visitChildren(node);
348
349 // Check if case constant types match switch expression type
350
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 33 for (const CaseBranchNode *caseBranchNode : node->caseBranches)
351
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 54 for (CaseConstantNode *constantNode : caseBranchNode->caseConstants) {
352
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 28 const QualType constantType = std::any_cast<ExprResult>(visit(constantNode)).type;
353
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 28 if (!constantType.matches(exprType, false, true, true))
354
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 6 SOFT_ERROR_ER(constantNode, SWITCH_CASE_TYPE_MISMATCH, "Case value type does not match the switch expression type")
355 }
356
357
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 5 return nullptr;
358 }
359
360 28 std::any TypeChecker::visitCaseBranch(CaseBranchNode *node) {
361 // Change to case body scope
362
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 28 ScopeHandle scopeHandle(this, node->getScopeId(), ScopeType::CASE_BODY);
363
364 // Visit constant list
365
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 56 for (CaseConstantNode *constant : node->caseConstants)
366
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 28 visit(constant);
367
368 // Visit body
369
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 28 visit(node->body);
370
371
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 56 return nullptr;
372 28 }
373
374 3 std::any TypeChecker::visitDefaultBranch(DefaultBranchNode *node) {
375 // Change to default body scope
376
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 3 ScopeHandle scopeHandle(this, node->getScopeId(), ScopeType::DEFAULT_BODY);
377
378 // Visit body
379
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 3 visit(node->body);
380
381
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 6 return nullptr;
382 3 }
383
384 13 std::any TypeChecker::visitAnonymousBlockStmt(AnonymousBlockStmtNode *node) {
385 // Change to anonymous scope body scope
386
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 13 ScopeHandle scopeHandle(this, node->getScopeId(), ScopeType::ANONYMOUS_BLOCK_BODY);
387
388 // Visit body
389
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 13 visit(node->body);
390
391
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 26 return nullptr;
392 13 }
393
394 13253 std::any TypeChecker::visitStmtLst(StmtLstNode *node) {
395 // Visit nodes in this scope
396
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 39652 for (ASTNode *stmt : node->children) {
397
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 26430 if (!stmt)
398 ✗ continue;
399 // Print warning if statement is unreachable
400
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 26430 if (stmt->unreachable) {
401
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 5 warnings.emplace_back(stmt->codeLoc, UNREACHABLE_CODE, "This statement is unreachable");
402 5 continue;
403 }
404 // Visit the statement
405
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 26425 visit(stmt);
406 }
407
408 // Do cleanup of this scope, e.g. dtor calls for struct instances
409 13222 doScopeCleanup(node);
410
411
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 13222 return nullptr;
412 }
413
414 9504 std::any TypeChecker::visitParamLst(ParamLstNode *node) {
415 9504 NamedParamList namedParams;
416 9504 bool metOptional = false;
417
418
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 24568 for (DeclStmtNode *param : node->params) {
419 // Visit param
420
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 15064 const auto paramType = std::any_cast<QualType>(visit(param));
421
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 15064 if (paramType.is(TY_UNRESOLVED))
422 11 continue;
423
424 // Check if the type could be inferred. Dyn without a default value is forbidden
425
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 15062 if (paramType.is(TY_DYN)) {
426
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 3 softError(node, FCT_PARAM_IS_TYPE_DYN, "Type of parameter '" + param->varName + "' is invalid");
427 3 continue;
428 }
429
430 // Ensure that no optional param comes after a mandatory param
431
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 15059 if (param->hasAssignment) {
432 1859 metOptional = true;
433
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 13200 } else if (metOptional) {
434
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 6 softError(param, INVALID_PARAM_ORDER, "Mandatory parameters must go before any optional parameters");
435 6 continue;
436 }
437
438 // Add parameter to named param list
439
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 15053 namedParams.push_back({param->varName.c_str(), paramType, metOptional});
440 }
441
442
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 19008 return namedParams;
443 9504 }
444
445 1182 std::any TypeChecker::visitField(FieldNode *node) {
446
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 1182 auto fieldType = std::any_cast<QualType>(visit(node->dataType));
447
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 1182 HANDLE_UNRESOLVED_TYPE_QT(fieldType)
448
449
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 1181 if (TernaryExprNode *defaultValueNode = node->defaultValue) {
450
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 151 const QualType defaultValueType = std::any_cast<ExprResult>(visit(defaultValueNode)).type;
451
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 151 HANDLE_UNRESOLVED_TYPE_QT(defaultValueType)
452
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 151 if (!fieldType.matches(defaultValueType, false, true, true))
453
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 3 SOFT_ERROR_QT(node, FIELD_TYPE_NOT_MATCHING, "Type of the default values does not match the field type")
454 }
455
456
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 1180 return fieldType;
457 }
458
459 172 std::any TypeChecker::visitSignature(SignatureNode *node) {
460 172 const bool isFunction = node->signatureType == SignatureNode::TYPE_FUNCTION;
461
462 // Retrieve function template types
463 172 std::vector<GenericType> usedGenericTypes;
464
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 172 if (node->hasTemplateTypes) {
465
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 181 for (DataTypeNode *dataType : node->templateTypeLst->dataTypes) {
466 // Visit template type
467
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 91 auto templateType = std::any_cast<QualType>(visit(dataType));
468
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 91 if (templateType.is(TY_UNRESOLVED))
469 ✗ return static_cast<std::vector<Function *> *>(nullptr);
470 // Check if it is a generic type
471
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 91 if (!templateType.is(TY_GENERIC)) {
472
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 1 softError(dataType, EXPECTED_GENERIC_TYPE, "A template list can only contain generic types");
473
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 1 return static_cast<std::vector<Function *> *>(nullptr);
474 }
475 // Convert generic symbol type to generic type
476
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 90 const GenericType *genericType = rootScope->lookupGenericType(templateType.getSubType());
477
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 90 assert(genericType != nullptr);
478
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 90 usedGenericTypes.push_back(*genericType);
479 }
480 }
481
482 // Visit return type
483
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 171 QualType returnType(TY_DYN);
484
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 171 if (isFunction) {
485
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 132 returnType = std::any_cast<QualType>(visit(node->returnType));
486
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 132 if (returnType.is(TY_UNRESOLVED))
487 ✗ return static_cast<std::vector<Function *> *>(nullptr);
488
489
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 132 if (!returnType.isCoveredByGenericTypeList(usedGenericTypes))
490
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 2 softError(node->returnType, GENERIC_TYPE_NOT_IN_TEMPLATE,
491 "Generic return type not included in the template type list of the function");
492 }
493
494 // Visit params
495 171 QualTypeList paramTypes;
496 171 ParamList paramList;
497
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 171 if (node->hasParams) {
498
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 12 paramList.reserve(node->paramTypeLst->dataTypes.size());
499
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 26 for (DataTypeNode *param : node->paramTypeLst->dataTypes) {
500
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 14 auto paramType = std::any_cast<QualType>(visit(param));
501
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 14 if (paramType.is(TY_UNRESOLVED))
502 ✗ return static_cast<std::vector<Function *> *>(nullptr);
503
504 // Check if the type is present in the template for generic types
505
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 14 if (!paramType.isCoveredByGenericTypeList(usedGenericTypes)) {
506
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 2 softError(node->paramTypeLst, GENERIC_TYPE_NOT_IN_TEMPLATE,
507 "Generic param type not included in the template type list of the function");
508 2 continue;
509 }
510
511
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 12 paramTypes.push_back(paramType);
512
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 12 paramList.push_back({paramType, false});
513 }
514 }
515
516 // Build signature object
517
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 171 const Function signature(node->methodName, nullptr, QualType(TY_DYN), returnType, paramList, usedGenericTypes, node);
518
519 // Add signature to current scope
520
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 171 Function *manifestation = FunctionManager::insert(currentScope, signature, &node->signatureManifestations);
521 171 manifestation->entry = node->entry;
522 171 manifestation->used = true;
523
524 // Prepare signature type
525
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 171 const SuperType superType = isFunction ? TY_FUNCTION : TY_PROCEDURE;
526
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 171 QualType signatureType = QualType(superType).getWithFunctionParamAndReturnTypes(returnType, paramTypes);
527 171 signatureType.setSpecifiers(node->signatureSpecifiers);
528
529 // Set entry to signature type
530
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 171 assert(node->entry != nullptr);
531
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 171 node->entry->updateType(signatureType, false);
532 171 node->entry->used = true;
533
534
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 171 return &node->signatureManifestations;
535 172 }
536
537 20795 std::any TypeChecker::visitDeclStmt(DeclStmtNode *node) {
538 // Retrieve entry of the lhs variable
539
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 20795 SymbolTableEntry *localVarEntry = currentScope->lookupStrict(node->varName);
540
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 20795 assert(localVarEntry != nullptr);
541
542 20795 QualType localVarType;
543
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 20795 if (node->hasAssignment) {
544 // Visit the right side
545
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 7384 auto rhs = std::any_cast<ExprResult>(visit(node->assignExpr));
546 7379 auto [rhsTy, rhsEntry] = rhs;
547
548 // If there is an anonymous entry attached (e.g. for struct instantiation), delete it
549
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 7379 if (rhsEntry != nullptr && rhsEntry->anonymous) {
550
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 803 currentScope->symbolTable.deleteAnonymous(rhsEntry->name);
551 803 rhs.entry = rhsEntry = nullptr;
552 }
553
554 // Visit data type
555
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 7379 localVarType = std::any_cast<QualType>(visit(node->dataType));
556
557 // Infer the type left to right if the right side is an empty array initialization
558
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 7376 if (rhsTy.isArrayOf(TY_DYN))
559 2 rhsTy = QualType(localVarType);
560
561 // Check if type has to be inferred or both types are fixed
562
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 7376 if (!localVarType.is(TY_UNRESOLVED) && !rhsTy.is(TY_UNRESOLVED)) {
563 7353 const ExprResult lhsResult = {localVarType, localVarEntry};
564
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 7353 localVarType = opRuleManager.getAssignResultType(node, lhsResult, rhs, true);
565
566 // Call copy ctor if required
567
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 7343 if (localVarType.is(TY_STRUCT) && !node->isFctParam && !rhs.isTemporary()) {
568
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 3 Scope *matchScope = localVarType.getBodyScope();
569
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 3 assert(matchScope != nullptr);
570 // Check if we have a no-args ctor to call
571 3 const QualType &thisType = localVarType;
572
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 6 const ArgList args = {{thisType.toConstRef(node), false}};
573
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 9 node->calledCopyCtor = FunctionManager::match(this, matchScope, CTOR_FUNCTION_NAME, thisType, args, {}, true, node);
574 3 }
575
576 // If this is a struct type, check if the type is known. If not, error out
577
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 7343 if (localVarType.isBase(TY_STRUCT) && !sourceFile->getNameRegistryEntry(localVarType.getBase().getSubType())) {
578 ✗ const std::string structName = localVarType.getBase().getSubType();
579 ✗ softError(node->dataType, UNKNOWN_DATATYPE, "Unknown struct type '" + structName + "'. Forgot to import?");
580 ✗ localVarType = QualType(TY_UNRESOLVED);
581 ✗ }
582 } else {
583
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 23 localVarType = QualType(TY_UNRESOLVED);
584 }
585 } else {
586 // Visit data type
587
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 13411 localVarType = std::any_cast<QualType>(visit(node->dataType));
588
589 // References with no initialization are illegal
590
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 13411 if (localVarType.isRef() && !node->isFctParam && !node->isForEachItem)
591
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 2 softError(node, REFERENCE_WITHOUT_INITIALIZER, "References must always be initialized directly");
592
593 // If this is a struct, check for the default ctor
594
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 13411 if (localVarType.is(TY_STRUCT) && !node->isFctParam && !node->isForEachItem) {
595
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 49 Scope *matchScope = localVarType.getBodyScope();
596
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 49 assert(matchScope != nullptr);
597 // Check if we are required to call a ctor
598
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 49 auto structDeclNode = spice_pointer_cast<StructDefNode *>(localVarType.getStruct(node)->declNode);
599
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 49 node->isCtorCallRequired = matchScope->hasRefFields() || structDeclNode->emitVTable;
600 // Check if we have a no-args ctor to call
601
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 49 const std::string &structName = localVarType.getSubType();
602 49 const QualType &thisType = localVarType;
603
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 147 node->calledInitCtor = FunctionManager::match(this, matchScope, CTOR_FUNCTION_NAME, thisType, {}, {}, false, node);
604
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 49 if (!node->calledInitCtor && node->isCtorCallRequired)
605
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 2 SOFT_ERROR_QT(node, MISSING_NO_ARGS_CTOR, "Struct '" + structName + "' misses a no-args constructor")
606 }
607 }
608
609 // Update the type of the variable
610
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 20775 localVarEntry->updateType(localVarType, true);
611
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 20775 node->entries.at(manIdx) = localVarEntry;
612
613 // Update the state of the variable
614
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 20775 localVarEntry->updateState(INITIALIZED, node, true);
615
616
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 20775 return node->setEvaluatedSymbolType(localVarType, manIdx);
617 }
618
619 56 std::any TypeChecker::visitCaseConstant(CaseConstantNode *node) {
620 // If we have a normal constant, we can take the symbol type from there
621
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 56 if (node->constant)
622
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 36 return visit(node->constant);
623
624 // Check if a local or global variable can be found by searching for the name
625
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 20 if (node->identifierFragments.size() == 1)
626 4 node->enumItemEntry = currentScope->lookup(node->identifierFragments.back());
627
628 // If no local or global was found, search in the name registry
629
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 20 if (!node->enumItemEntry) {
630
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 9 const NameRegistryEntry *registryEntry = sourceFile->getNameRegistryEntry(node->fqIdentifier);
631
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 9 if (!registryEntry)
632 ✗ SOFT_ERROR_ER(node, REFERENCED_UNDEFINED_VARIABLE, "The variable '" + node->fqIdentifier + "' could not be found")
633 9 node->enumItemEntry = registryEntry->targetEntry;
634 }
635
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 20 assert(node->enumItemEntry != nullptr);
636
637 // Check for the correct type
638
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 20 if (node->enumItemEntry->scope->type != ScopeType::ENUM)
639
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 6 SOFT_ERROR_ER(node, CASE_CONSTANT_NOT_ENUM, "Case constants must be of type enum")
640
641
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 18 const QualType varType = node->enumItemEntry->getQualType();
642
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 18 assert(varType.is(TY_INT));
643
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 18 return ExprResult{node->setEvaluatedSymbolType(varType, manIdx)};
644 }
645
646 5860 std::any TypeChecker::visitReturnStmt(ReturnStmtNode *node) {
647 // Retrieve return variable entry
648
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 17580 SymbolTableEntry *returnVar = currentScope->lookup(RETURN_VARIABLE_NAME);
649 5860 const bool isFunction = returnVar != nullptr;
650
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 5860 const QualType returnType = isFunction ? returnVar->getQualType() : QualType(TY_DYN);
651
652 // Check if procedure with return value
653
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 5860 if (!isFunction) {
654
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 44 if (node->hasReturnValue)
655
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 6 SOFT_ERROR_ER(node->assignExpr, RETURN_WITH_VALUE_IN_PROCEDURE, "Return with value in procedure is not allowed")
656
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 42 return nullptr;
657 }
658
659
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 5816 if (!node->hasReturnValue && !returnVar->getLifecycle().isInitialized())
660
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 6 SOFT_ERROR_QT(node, RETURN_WITHOUT_VALUE_RESULT, "Return without value, but result variable is not initialized yet")
661
662
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 5814 if (!node->hasReturnValue)
663
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 4 return nullptr;
664
665 // Visit right side
666
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 5810 auto rhs = std::any_cast<ExprResult>(visit(node->assignExpr));
667
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 5810 HANDLE_UNRESOLVED_TYPE_QT(rhs.type)
668
669 // Check if types match
670 5810 const ExprResult returnResult = {returnType, returnVar};
671
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 5810 (void)opRuleManager.getAssignResultType(node->assignExpr, returnResult, rhs, false, true, ERROR_MSG_RETURN);
672
673 // Manage dtor call
674
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 5808 if (rhs.entry != nullptr) {
675
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 1575 if (rhs.entry->anonymous) {
676 // If there is an anonymous entry attached (e.g. for struct instantiation), delete it
677
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 622 currentScope->symbolTable.deleteAnonymous(rhs.entry->name);
678 622 rhs.entry = nullptr;
679 } else {
680 // Otherwise omit the destructor call, because the caller destructs the value
681 953 rhs.entry->omitDtorCall = true;
682 }
683 }
684
685
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 5808 return node->setEvaluatedSymbolType(returnType, manIdx);
686 }
687
688 101 std::any TypeChecker::visitBreakStmt(BreakStmtNode *node) {
689 // Check if the stated number is valid
690
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 101 if (node->breakTimes < 1)
691
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 1 SOFT_ERROR_ER(node, INVALID_BREAK_NUMBER, "Break count must be >= 1, you provided " + std::to_string(node->breakTimes))
692
693 // Check if we can break this often
694 100 const unsigned int maxBreaks = currentScope->getLoopNestingDepth();
695
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 100 if (static_cast<unsigned int>(node->breakTimes) > maxBreaks)
696
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 1 SOFT_ERROR_ER(node, INVALID_BREAK_NUMBER, "We can only break " + std::to_string(maxBreaks) + " time(s) here")
697
698
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 99 return nullptr;
699 }
700
701 335 std::any TypeChecker::visitContinueStmt(ContinueStmtNode *node) {
702 // Check if the stated number is valid
703
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 335 if (node->continueTimes < 1)
704
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 1 SOFT_ERROR_ER(node, INVALID_CONTINUE_NUMBER,
705 "Continue count must be >= 1, you provided " + std::to_string(node->continueTimes))
706
707 // Check if we can continue this often
708 334 const unsigned int maxContinues = currentScope->getLoopNestingDepth();
709
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 334 if (static_cast<unsigned int>(node->continueTimes) > maxContinues)
710
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 1 SOFT_ERROR_ER(node, INVALID_CONTINUE_NUMBER, "We can only continue " + std::to_string(maxContinues) + " time(s) here")
711
712
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 333 return nullptr;
713 }
714
715 6 std::any TypeChecker::visitFallthroughStmt(FallthroughStmtNode *node) {
716 // Check if we can do a fallthrough here
717
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 6 if (!currentScope->isInCaseBranch())
718
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 6 SOFT_ERROR_ER(node, FALLTHROUGH_NOT_ALLOWED, "Fallthrough is only allowed in case branches")
719
720
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 4 return nullptr;
721 }
722
723 657 std::any TypeChecker::visitAssertStmt(AssertStmtNode *node) {
724 // Visit condition
725
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 657 const QualType conditionType = std::any_cast<ExprResult>(visit(node->assignExpr)).type;
726
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 657 HANDLE_UNRESOLVED_TYPE_ER(conditionType)
727
728 // Check if condition evaluates to bool
729
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 657 if (!conditionType.is(TY_BOOL))
730
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 3 SOFT_ERROR_ER(node->assignExpr, ASSERTION_CONDITION_BOOL, "The asserted condition must be of type bool")
731
732
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 656 return nullptr;
733 }
734
735 1184 std::any TypeChecker::visitBuiltinCall(BuiltinCallNode *node) {
736
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 1184 if (node->printfCall)
737 651 return visitPrintfCall(node->printfCall);
738
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 533 if (node->sizeofCall)
739 119 return visitSizeofCall(node->sizeofCall);
740
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 414 if (node->alignofCall)
741 11 return visitAlignofCall(node->alignofCall);
742
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 403 if (node->lenCall)
743 36 return visitLenCall(node->lenCall);
744
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 367 if (node->panicCall)
745 366 return visitPanicCall(node->panicCall);
746
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 1 if (node->sysCall)
747 1 return visitSysCall(node->sysCall);
748 ✗ assert_fail("Unknown builtin call");
749 return nullptr;
750 }
751
752 651 std::any TypeChecker::visitPrintfCall(PrintfCallNode *node) {
753 // Check if assignment types match placeholder types
754 651 size_t placeholderCount = 0;
755 651 size_t index = node->templatedString.find_first_of('%');
756
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 1179 while (index != std::string::npos && index != node->templatedString.size() - 1) {
757 // Check if there is another assignExpr
758
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 550 if (node->args.size() <= placeholderCount)
759
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 3 SOFT_ERROR_ER(node, PRINTF_ARG_COUNT_ERROR, "The placeholder string contains more placeholders than arguments")
760
761 // Get next assignment
762
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 549 AssignExprNode *assignment = node->args.at(placeholderCount);
763 // Visit assignment
764
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 549 QualType argType = std::any_cast<ExprResult>(visit(assignment)).type;
765
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 549 HANDLE_UNRESOLVED_TYPE_ER(argType)
766
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 534 argType = argType.removeReferenceWrapper();
767
768
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 534 switch (node->templatedString.at(index + 1)) {
769 15 case 'c': {
770
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 15 if (!argType.is(TY_CHAR))
771
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 1 SOFT_ERROR_ER(assignment, PRINTF_TYPE_ERROR, "The placeholder string expects char, but got " + argType.getName(false))
772 14 placeholderCount++;
773 14 break;
774 }
775 292 case 'd':
776 case 'i':
777 case 'l':
778 case 'o':
779 case 'u':
780 case 'x':
781 case 'X': {
782
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 292 if (!argType.isOneOf({TY_INT, TY_SHORT, TY_LONG, TY_BYTE, TY_BOOL}))
783
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 2 SOFT_ERROR_ER(assignment, PRINTF_TYPE_ERROR,
784 "The placeholder string expects int, short, long, byte or bool, but got " + argType.getName(false))
785 290 placeholderCount++;
786 290 break;
787 }
788 34 case 'a':
789 case 'A':
790 case 'f':
791 case 'F':
792 case 'e':
793 case 'E':
794 case 'g':
795 case 'G': {
796
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 34 if (!argType.is(TY_DOUBLE))
797
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 1 SOFT_ERROR_ER(assignment, PRINTF_TYPE_ERROR, "The placeholder string expects double, but got " + argType.getName(false))
798 33 placeholderCount++;
799 33 break;
800 }
801 188 case 's': {
802
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 188 if (!argType.is(TY_STRING) && !argType.isStringObj() && !argType.isPtrTo(TY_CHAR) && !argType.isArrayOf(TY_CHAR))
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 1 SOFT_ERROR_ER(assignment, PRINTF_TYPE_ERROR,
804 "The placeholder string expects string, String, char* or char[], but got " + argType.getName(false))
805 187 placeholderCount++;
806 187 break;
807 }
808 5 case 'p': {
809
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 5 if (!argType.isPtr() && !argType.isArray() && !argType.is(TY_STRING))
810
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 1 SOFT_ERROR_ER(assignment, PRINTF_TYPE_ERROR,
811 "The placeholder string expects pointer, array or string, but got " + argType.getName(false))
812 4 placeholderCount++;
813 4 break;
814 }
815 ✗ default:
816 ✗ SOFT_ERROR_ER(node, PRINTF_TYPE_ERROR, "The placeholder string contains an invalid placeholder")
817 }
818 528 index = node->templatedString.find_first_of('%', index + 2); // We can also skip the following char
819 }
820
821 // Check if the number of placeholders matches the number of args
822
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 629 if (placeholderCount < node->args.size())
823
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 3 SOFT_ERROR_ER(node, PRINTF_ARG_COUNT_ERROR, "The placeholder string contains less placeholders than arguments")
824
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 628 return ExprResult{node->setEvaluatedSymbolType(QualType(TY_INT), manIdx)};
826 }
827
828 119 std::any TypeChecker::visitSizeofCall(SizeofCallNode *node) {
829
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 119 if (node->isType) { // Size of type
830
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 102 visit(node->dataType);
831 } else { // Size of value
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 17 visit(node->assignExpr);
833 }
834
835
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 119 return ExprResult{node->setEvaluatedSymbolType(QualType(TY_LONG), manIdx)};
836 }
837
838 11 std::any TypeChecker::visitAlignofCall(AlignofCallNode *node) {
839
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 11 if (node->isType) { // Align of type
840
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 1 visit(node->dataType);
841 } else { // Align of value
842
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 10 visit(node->assignExpr);
843 }
844
845
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 11 return ExprResult{node->setEvaluatedSymbolType(QualType(TY_LONG), manIdx)};
846 }
847
848 36 std::any TypeChecker::visitLenCall(LenCallNode *node) {
849
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 36 QualType argType = std::any_cast<ExprResult>(visit(node->assignExpr)).type;
850
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 36 HANDLE_UNRESOLVED_TYPE_ER(argType)
851
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 36 argType = argType.removeReferenceWrapper();
852
853 // Check if arg is of type array
854
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 36 if (!argType.isArray() && !argType.is(TY_STRING))
855
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 3 SOFT_ERROR_ER(node->assignExpr, EXPECTED_ARRAY_TYPE, "The len builtin can only work on arrays or strings")
856
857 // If we want to use the len builtin on a string, we need to import the string runtime module
858
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 58 if (argType.is(TY_STRING) && !sourceFile->isStringRT())
859
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 23 sourceFile->requestRuntimeModule(STRING_RT);
860
861
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 35 return ExprResult{node->setEvaluatedSymbolType(QualType(TY_LONG), manIdx)};
862 }
863
864 366 std::any TypeChecker::visitPanicCall(PanicCallNode *node) {
865
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 366 QualType argType = std::any_cast<ExprResult>(visit(node->assignExpr)).type;
866
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 366 HANDLE_UNRESOLVED_TYPE_ER(argType)
867
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 366 argType = argType.removeReferenceWrapper();
868
869 // Check if arg is of type array
870
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 366 if (!argType.isErrorObj())
871 ✗ SOFT_ERROR_ER(node->assignExpr, EXPECTED_ERROR_TYPE, "The panic builtin can only work with errors")
872
873
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 366 return ExprResult{node->setEvaluatedSymbolType(QualType(TY_DYN), manIdx)};
874 }
875
876 1 std::any TypeChecker::visitSysCall(SysCallNode *node) {
877 // Check if the syscall number if of type short
878
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 1 const QualType sysCallNumberType = std::any_cast<ExprResult>(visit(node->args.front())).type;
879
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 1 if (!sysCallNumberType.is(TY_SHORT))
880 ✗ SOFT_ERROR_ER(node->args.front(), INVALID_SYSCALL_NUMBER_TYPE, "Syscall number must be of type short")
881
882 // Check if the syscall number is out of range
883 // According to https://www.chromium.org/chromium-os/developer-library/reference/linux-constants/syscalls/
884
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 1 if (node->hasCompileTimeValue()) {
885 ✗ const unsigned short sysCallNumber = node->getCompileTimeValue().shortValue;
886 ✗ if (sysCallNumber < 0 || sysCallNumber > 439)
887 ✗ SOFT_ERROR_ER(node, SYSCALL_NUMBER_OUT_OF_RANGE, "Only syscall numbers between 0 and 439 are supported")
888 }
889
890 // Check if too many syscall args are given
891 // According to https://www.chromium.org/chromium-os/developer-library/reference/linux-constants/syscalls/
892
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 1 if (node->args.size() > 6)
893 ✗ SOFT_ERROR_ER(node->args.front(), TOO_MANY_SYSCALL_ARGS, "There are no syscalls that support more than 6 arguments")
894
895 // Visit children
896
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 4 for (size_t i = 1; i < node->args.size(); i++)
897
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 3 visit(node->args.at(i));
898
899
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 1 return ExprResult{node->setEvaluatedSymbolType(QualType(TY_LONG), manIdx)};
900 }
901
902 48605 std::any TypeChecker::visitAssignExpr(AssignExprNode *node) {
903 // Check if ternary
904
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 48605 if (node->ternaryExpr) {
905
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 43821 auto result = std::any_cast<ExprResult>(visit(node->ternaryExpr));
906
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 43806 node->setEvaluatedSymbolType(result.type, manIdx);
907
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 43806 return result;
908 }
909
910 // Check if assignment
911
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 4784 if (node->op != AssignExprNode::OP_NONE) {
912 // Visit the right side first
913
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 4784 auto rhs = std::any_cast<ExprResult>(visit(node->rhs));
914 4784 auto [rhsType, rhsEntry] = rhs;
915
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 4784 HANDLE_UNRESOLVED_TYPE_ER(rhsType)
916 // Then visit the left side
917
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 4783 auto lhs = std::any_cast<ExprResult>(visit(node->lhs));
918 4783 auto [lhsType, lhsVar] = lhs;
919
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 4783 HANDLE_UNRESOLVED_TYPE_ER(lhsType)
920
921 // Take a look at the operator
922
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 4782 if (node->op == AssignExprNode::OP_ASSIGN) {
923
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 4251 const bool isDecl = lhs.entry->isField() && !lhs.entry->getLifecycle().isInitialized();
924
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 4251 rhsType = opRuleManager.getAssignResultType(node, lhs, rhs, isDecl);
925
926 // If there is an anonymous entry attached (e.g. for struct instantiation), delete it
927
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 4249 if (rhsEntry != nullptr && rhsEntry->anonymous) {
928
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 125 currentScope->symbolTable.deleteAnonymous(rhsEntry->name);
929 125 rhsEntry = nullptr;
930 }
931
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 531 } else if (node->op == AssignExprNode::OP_PLUS_EQUAL) {
932
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 213 rhsType = opRuleManager.getPlusEqualResultType(node, lhs, rhs, 0).type;
933
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 318 } else if (node->op == AssignExprNode::OP_MINUS_EQUAL) {
934
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 27 rhsType = opRuleManager.getMinusEqualResultType(node, lhs, rhs, 0).type;
935
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 291 } else if (node->op == AssignExprNode::OP_MUL_EQUAL) {
936
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 15 rhsType = opRuleManager.getMulEqualResultType(node, lhs, rhs, 0).type;
937
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 276 } else if (node->op == AssignExprNode::OP_DIV_EQUAL) {
938
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 35 rhsType = opRuleManager.getDivEqualResultType(node, lhs, rhs, 0).type;
939
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 241 } else if (node->op == AssignExprNode::OP_REM_EQUAL) {
940
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 5 rhsType = OpRuleManager::getRemEqualResultType(node, lhs, rhs);
941
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 236 } else if (node->op == AssignExprNode::OP_SHL_EQUAL) {
942
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 1 rhsType = OpRuleManager::getSHLEqualResultType(node, lhs, rhs);
943
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 235 } else if (node->op == AssignExprNode::OP_SHR_EQUAL) {
944
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 2 rhsType = OpRuleManager::getSHREqualResultType(node, lhs, rhs);
945
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 233 } else if (node->op == AssignExprNode::OP_AND_EQUAL) {
946
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 1 rhsType = OpRuleManager::getAndEqualResultType(node, lhs, rhs);
947
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 232 } else if (node->op == AssignExprNode::OP_OR_EQUAL) {
948
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 1 rhsType = OpRuleManager::getOrEqualResultType(node, lhs, rhs);
949
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 231 } else if (node->op == AssignExprNode::OP_XOR_EQUAL) {
950
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 231 rhsType = OpRuleManager::getXorEqualResultType(node, lhs, rhs);
951 }
952
953
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 4780 if (lhsVar) { // Variable is involved on the left side
954 // Perform type inference
955
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 4780 if (lhsType.is(TY_DYN))
956
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 1 lhsVar->updateType(rhsType, false);
957
958 // In case the lhs variable is captured, notify the capture about the write access
959
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 4780 if (Capture *lhsCapture = currentScope->symbolTable.lookupCapture(lhsVar->name); lhsCapture)
960
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 3 lhsCapture->setAccessType(READ_WRITE);
961
962 // Update the state of the variable
963
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 4780 lhsVar->updateState(INITIALIZED, node, false);
964 }
965
966
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 4780 return ExprResult{node->setEvaluatedSymbolType(rhsType, manIdx)};
967 }
968
969 − throw CompilerError(UNHANDLED_BRANCH, "AssignExpr fall-through"); // GCOV_EXCL_LINE
970 }
971
972 44653 std::any TypeChecker::visitTernaryExpr(TernaryExprNode *node) {
973 // Check if there is a ternary operator applied
974
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 44653 if (!node->falseExpr)
975
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 44370 return visit(node->condition);
976
977 // Visit condition
978
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 283 const QualType conditionType = std::any_cast<ExprResult>(visit(node->condition)).type;
979
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 283 HANDLE_UNRESOLVED_TYPE_ER(conditionType)
980
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 283 const QualType trueType = node->isShortened ? conditionType : std::any_cast<ExprResult>(visit(node->trueExpr)).type;
981
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 283 HANDLE_UNRESOLVED_TYPE_ER(trueType)
982
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 283 const QualType falseType = std::any_cast<ExprResult>(visit(node->falseExpr)).type;
983
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 283 HANDLE_UNRESOLVED_TYPE_ER(falseType)
984
985 // Check if the condition evaluates to bool
986
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 283 if (!conditionType.is(TY_BOOL))
987
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 3 SOFT_ERROR_ER(node->condition, OPERATOR_WRONG_DATA_TYPE, "Condition operand in ternary must be a bool")
988
989 // Check if trueType and falseType are matching
990
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 282 const QualType trueTypeModified = trueType.removeReferenceWrapper();
991
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 282 const QualType falseTypeModified = falseType.removeReferenceWrapper();
992
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 282 if (!trueTypeModified.matches(falseTypeModified, false, true, false))
993
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 1 SOFT_ERROR_ER(node, OPERATOR_WRONG_DATA_TYPE,
994 "True and false operands in ternary must be of same data type. Got " + trueType.getName(true) + " and " +
995 falseType.getName(true))
996
997
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 281 return ExprResult{node->setEvaluatedSymbolType(trueType, manIdx)};
998 }
999
1000 45218 std::any TypeChecker::visitLogicalOrExpr(LogicalOrExprNode *node) {
1001 // Check if a logical or operator is applied
1002
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 45218 if (node->children.size() == 1)
1003
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 44957 return visit(node->operands.front());
1004
1005 // Visit leftmost operand
1006
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 261 auto currentOperand = std::any_cast<ExprResult>(visit(node->operands[0]));
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 261 HANDLE_UNRESOLVED_TYPE_ER(currentOperand.type)
1008 // Loop through all remaining operands
1009
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 548 for (size_t i = 1; i < node->operands.size(); i++) {
1010
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 288 auto rhsOperand = std::any_cast<ExprResult>(visit(node->operands[i]));
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 288 HANDLE_UNRESOLVED_TYPE_ER(rhsOperand.type)
1012
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 288 currentOperand = {OpRuleManager::getLogicalOrResultType(node, currentOperand, rhsOperand)};
1013 }
1014
1015
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 260 node->setEvaluatedSymbolType(currentOperand.type, manIdx);
1016
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 260 return currentOperand;
1017 }
1018
1019 45506 std::any TypeChecker::visitLogicalAndExpr(LogicalAndExprNode *node) {
1020 // Check if a logical and operator is applied
1021
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 45506 if (node->children.size() == 1)
1022
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 45448 return visit(node->operands.front());
1023
1024 // Visit leftmost operand
1025
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 58 auto currentOperand = std::any_cast<ExprResult>(visit(node->operands[0]));
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 58 HANDLE_UNRESOLVED_TYPE_ER(currentOperand.type)
1027 // Loop through all remaining operands
1028
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 123 for (size_t i = 1; i < node->operands.size(); i++) {
1029
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 65 auto rhsOperand = std::any_cast<ExprResult>(visit(node->operands[i]));
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 65 HANDLE_UNRESOLVED_TYPE_ER(rhsOperand.type)
1031
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 65 currentOperand = {OpRuleManager::getLogicalAndResultType(node, currentOperand, rhsOperand)};
1032 }
1033
1034
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 58 node->setEvaluatedSymbolType(currentOperand.type, manIdx);
1035
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 58 return currentOperand;
1036 }
1037
1038 45571 std::any TypeChecker::visitBitwiseOrExpr(BitwiseOrExprNode *node) {
1039 // Check if a bitwise or operator is applied
1040
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 45571 if (node->children.size() == 1)
1041
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 45538 return visit(node->operands.front());
1042
1043 // Visit leftmost operand
1044
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 33 auto currentOperand = std::any_cast<ExprResult>(visit(node->operands[0]));
1045
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 33 HANDLE_UNRESOLVED_TYPE_ER(currentOperand.type)
1046 // Loop through all remaining operands
1047
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 68 for (size_t i = 1; i < node->operands.size(); i++) {
1048
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 36 auto rhsOperand = std::any_cast<ExprResult>(visit(node->operands[i]));
1049
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 36 HANDLE_UNRESOLVED_TYPE_ER(rhsOperand.type)
1050
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 36 currentOperand = {OpRuleManager::getBitwiseOrResultType(node, currentOperand, rhsOperand)};
1051 }
1052
1053
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 32 node->setEvaluatedSymbolType(currentOperand.type, manIdx);
1054
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 32 return currentOperand;
1055 }
1056
1057 45607 std::any TypeChecker::visitBitwiseXorExpr(BitwiseXorExprNode *node) {
1058 // Check if a bitwise xor operator is applied
1059
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 45607 if (node->children.size() == 1)
1060
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 45603 return visit(node->operands.front());
1061
1062 // Visit leftmost operand
1063
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 4 auto currentOperand = std::any_cast<ExprResult>(visit(node->operands[0]));
1064
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 4 HANDLE_UNRESOLVED_TYPE_ER(currentOperand.type)
1065 // Loop through all remaining operands
1066
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 11 for (size_t i = 1; i < node->operands.size(); i++) {
1067
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 7 auto rhsOperand = std::any_cast<ExprResult>(visit(node->operands[i]));
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 7 HANDLE_UNRESOLVED_TYPE_ER(rhsOperand.type)
1069
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 7 currentOperand = {OpRuleManager::getBitwiseXorResultType(node, currentOperand, rhsOperand)};
1070 }
1071
1072
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 4 node->setEvaluatedSymbolType(currentOperand.type, manIdx);
1073
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 4 return currentOperand;
1074 }
1075
1076 45614 std::any TypeChecker::visitBitwiseAndExpr(BitwiseAndExprNode *node) {
1077 // Check if a bitwise and operator is applied
1078
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 45614 if (node->children.size() == 1)
1079
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 45584 return visit(node->operands.front());
1080
1081 // Visit leftmost operand
1082
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 30 auto currentOperand = std::any_cast<ExprResult>(visit(node->operands[0]));
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 30 HANDLE_UNRESOLVED_TYPE_ER(currentOperand.type)
1084 // Loop through all remaining operands
1085
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 63 for (size_t i = 1; i < node->operands.size(); i++) {
1086
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 33 auto rhsOperand = std::any_cast<ExprResult>(visit(node->operands[i]));
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 33 HANDLE_UNRESOLVED_TYPE_ER(rhsOperand.type)
1088
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 33 currentOperand = {OpRuleManager::getBitwiseAndResultType(node, currentOperand, rhsOperand)};
1089 }
1090
1091
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 30 node->setEvaluatedSymbolType(currentOperand.type, manIdx);
1092
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 30 return currentOperand;
1093 }
1094
1095 45647 std::any TypeChecker::visitEqualityExpr(EqualityExprNode *node) {
1096 // Check if at least one equality operator is applied
1097
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 45647 if (node->children.size() == 1)
1098
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 41953 return visit(node->operands.front());
1099
1100 // Visit right side first, then left side
1101
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 3694 auto rhs = std::any_cast<ExprResult>(visit(node->operands[1]));
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 3694 HANDLE_UNRESOLVED_TYPE_ER(rhs.type)
1103
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 3694 auto lhs = std::any_cast<ExprResult>(visit(node->operands[0]));
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 3694 HANDLE_UNRESOLVED_TYPE_ER(lhs.type)
1105
1106 // Check if we need the string runtime to perform a string comparison
1107
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 3811 if (lhs.type.is(TY_STRING) && rhs.type.is(TY_STRING) && !sourceFile->isStringRT())
1108
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 117 sourceFile->requestRuntimeModule(STRING_RT);
1109
1110 // Check operator
1111 3694 ExprResult result;
1112
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 3694 if (node->op == EqualityExprNode::OP_EQUAL) // Operator was equal
1113
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 2379 result = opRuleManager.getEqualResultType(node, lhs, rhs, 0);
1114
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 1315 else if (node->op == EqualityExprNode::OP_NOT_EQUAL) // Operator was not equal
1115
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 1315 result = opRuleManager.getNotEqualResultType(node, lhs, rhs, 0);
1116 else
1117 − throw CompilerError(UNHANDLED_BRANCH, "EqualityExpr fall-through"); // GCOV_EXCL_LINE
1118
1119
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 3693 node->setEvaluatedSymbolType(result.type, manIdx);
1120
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 3693 return result;
1121 }
1122
1123 49341 std::any TypeChecker::visitRelationalExpr(RelationalExprNode *node) {
1124 // Check if a relational operator is applied
1125
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 49341 if (node->children.size() == 1)
1126
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 46791 return visit(node->operands.front());
1127
1128 // Visit right side first, then left side
1129
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 2550 auto rhs = std::any_cast<ExprResult>(visit(node->operands[1]));
1130
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 2550 HANDLE_UNRESOLVED_TYPE_ER(rhs.type)
1131
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 2549 auto lhs = std::any_cast<ExprResult>(visit(node->operands[0]));
1132
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 2549 HANDLE_UNRESOLVED_TYPE_ER(lhs.type)
1133
1134 // Check operator
1135 2549 QualType resultType;
1136
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 2549 if (node->op == RelationalExprNode::OP_LESS) // Operator was less
1137
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 1476 resultType = OpRuleManager::getLessResultType(node, lhs, rhs);
1138
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 1073 else if (node->op == RelationalExprNode::OP_GREATER) // Operator was greater
1139
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 246 resultType = OpRuleManager::getGreaterResultType(node, lhs, rhs);
1140
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 827 else if (node->op == RelationalExprNode::OP_LESS_EQUAL) // Operator was less equal
1141
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 263 resultType = OpRuleManager::getLessEqualResultType(node, lhs, rhs);
1142
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 564 else if (node->op == RelationalExprNode::OP_GREATER_EQUAL) // Operator was greater equal
1143
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 564 resultType = OpRuleManager::getGreaterEqualResultType(node, lhs, rhs);
1144 else
1145 − throw CompilerError(UNHANDLED_BRANCH, "RelationalExpr fall-through"); // GCOV_EXCL_LINE
1146
1147
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 2548 return ExprResult{node->setEvaluatedSymbolType(resultType, manIdx)};
1148 }
1149
1150 51890 std::any TypeChecker::visitShiftExpr(ShiftExprNode *node) {
1151 // Check if at least one shift operator is applied
1152
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 51890 if (node->children.size() == 1)
1153
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 51873 return visit(node->operands.front());
1154
1155 // Visit right side first, then left
1156
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 17 auto rhs = std::any_cast<ExprResult>(visit(node->operands[1]));
1157
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 17 HANDLE_UNRESOLVED_TYPE_ER(rhs.type)
1158
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 17 auto lhs = std::any_cast<ExprResult>(visit(node->operands[0]));
1159
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 17 HANDLE_UNRESOLVED_TYPE_ER(lhs.type)
1160
1161 // Check operator
1162 17 ExprResult currentResult;
1163
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 17 if (node->op == ShiftExprNode::OP_SHIFT_LEFT) // Operator was shl
1164
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 10 currentResult = opRuleManager.getShiftLeftResultType(node, lhs, rhs, 0);
1165
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 7 else if (node->op == ShiftExprNode::OP_SHIFT_RIGHT) // Operator was shr
1166
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 7 currentResult = opRuleManager.getShiftRightResultType(node, lhs, rhs, 0);
1167 else
1168 − throw CompilerError(UNHANDLED_BRANCH, "ShiftExpr fall-through"); // GCOV_EXCL_LINE
1169
1170
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 17 node->setEvaluatedSymbolType(currentResult.type, manIdx);
1171
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 17 return currentResult;
1172 }
1173
1174 51907 std::any TypeChecker::visitAdditiveExpr(AdditiveExprNode *node) {
1175 // Check if at least one additive operator is applied
1176
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 51907 if (node->children.size() == 1)
1177
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 48885 return visit(node->operands.front());
1178
1179 // Visit leftmost operand
1180
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 3022 auto currentResult = std::any_cast<ExprResult>(visit(node->operands[0]));
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 3022 HANDLE_UNRESOLVED_TYPE_ER(currentResult.type)
1182
1183 // Loop through remaining operands
1184
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 6458 for (size_t i = 0; i < node->opQueue.size(); i++) {
1185 // Visit next operand
1186 3437 MultiplicativeExprNode *operand = node->operands[i + 1];
1187
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 3437 auto operandResult = std::any_cast<ExprResult>(visit(operand));
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 3437 HANDLE_UNRESOLVED_TYPE_ER(operandResult.type)
1189
1190 // Check operator
1191 3437 const AdditiveExprNode::AdditiveOp &op = node->opQueue.front().first;
1192
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 3437 if (op == AdditiveExprNode::OP_PLUS)
1193
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 2178 currentResult = opRuleManager.getPlusResultType(node, currentResult, operandResult, i);
1194
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 1259 else if (op == AdditiveExprNode::OP_MINUS)
1195
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 1259 currentResult = opRuleManager.getMinusResultType(node, currentResult, operandResult, i);
1196 else
1197 − throw CompilerError(UNHANDLED_BRANCH, "AdditiveExpr fall-through"); // GCOV_EXCL_LINE
1198
1199 // Push the new item and pop the old one on the other side of the queue
1200
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 3436 node->opQueue.emplace(op, currentResult.type);
1201 3436 node->opQueue.pop();
1202 }
1203
1204
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 3021 node->setEvaluatedSymbolType(currentResult.type, manIdx);
1205
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 3021 return currentResult;
1206 }
1207
1208 55344 std::any TypeChecker::visitMultiplicativeExpr(MultiplicativeExprNode *node) {
1209 // Check if at least one multiplicative operator is applied
1210
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 55344 if (node->children.size() == 1)
1211
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 54500 return visit(node->operands.front());
1212
1213 // Visit leftmost operand
1214
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 844 auto currentResult = std::any_cast<ExprResult>(visit(node->operands[0]));
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 844 HANDLE_UNRESOLVED_TYPE_ER(currentResult.type)
1216 // Loop through remaining operands
1217
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 1711 for (size_t i = 0; i < node->opQueue.size(); i++) {
1218 // Visit next operand
1219 868 CastExprNode *operand = node->operands[i + 1];
1220
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 868 auto operandResult = std::any_cast<ExprResult>(visit(operand));
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 868 HANDLE_UNRESOLVED_TYPE_ER(operandResult.type)
1222
1223 // Check operator
1224 868 const MultiplicativeExprNode::MultiplicativeOp &op = node->opQueue.front().first;
1225
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 868 if (op == MultiplicativeExprNode::OP_MUL)
1226
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 654 currentResult = opRuleManager.getMulResultType(node, currentResult, operandResult, i);
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 214 else if (op == MultiplicativeExprNode::OP_DIV)
1228
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 205 currentResult = opRuleManager.getDivResultType(node, currentResult, operandResult, i);
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 9 else if (op == MultiplicativeExprNode::OP_REM)
1230
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 9 currentResult = OpRuleManager::getRemResultType(node, currentResult, operandResult);
1231 else
1232 − throw CompilerError(UNHANDLED_BRANCH, "Multiplicative fall-through"); // GCOV_EXCL_LINE
1233
1234 // Push the new item and pop the old one on the other side of the queue
1235
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 867 node->opQueue.emplace(op, currentResult.type);
1236 867 node->opQueue.pop();
1237 }
1238
1239
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 843 node->setEvaluatedSymbolType(currentResult.type, manIdx);
1240
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 843 return currentResult;
1241 }
1242
1243 56212 std::any TypeChecker::visitCastExpr(CastExprNode *node) {
1244 // Check if cast is applied
1245
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 56212 if (!node->isCast)
1246
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 53855 return visit(node->prefixUnaryExpr);
1247
1248 // Visit source type
1249
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 2357 const auto src = std::any_cast<ExprResult>(visit(node->prefixUnaryExpr));
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 2357 HANDLE_UNRESOLVED_TYPE_ER(src.type)
1251 // Visit destination type
1252
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 2357 const auto dstType = std::any_cast<QualType>(visit(node->dataType));
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 2357 HANDLE_UNRESOLVED_TYPE_ER(dstType)
1254
1255 // Check for identity cast
1256
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 2357 if (src.type == dstType) {
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 1006 const CompilerWarning warning(node->codeLoc, IDENTITY_CAST, "You cast from a type to itself. Thus, this can be simplified.");
1258
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 1006 sourceFile->compilerOutput.warnings.push_back(warning);
1259 1006 }
1260
1261 // Get result type
1262
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 2357 const QualType resultType = opRuleManager.getCastResultType(node, dstType, src);
1263
1264
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 2357 SymbolTableEntry *entry = src.type.isSameContainerTypeAs(dstType) ? src.entry : nullptr;
1265
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 2357 return ExprResult{node->setEvaluatedSymbolType(resultType, manIdx), entry};
1266 }
1267
1268 61834 std::any TypeChecker::visitPrefixUnaryExpr(PrefixUnaryExprNode *node) {
1269 // Reset access scope
1270 61834 accessScope = nullptr;
1271
1272 // If no operator is applied, simply visit the postfix unary expression
1273
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 61834 if (node->op == PrefixUnaryExprNode::OP_NONE)
1274
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 60995 return visit(node->postfixUnaryExpr);
1275
1276 // Visit the right side
1277 839 PrefixUnaryExprNode *rhsNode = node->prefixUnaryExpr;
1278
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 839 auto operand = std::any_cast<ExprResult>(visit(rhsNode));
1279 839 auto [operandType, operandEntry] = operand;
1280
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 839 HANDLE_UNRESOLVED_TYPE_ER(operandType)
1281 // Determine action, based on the given operator
1282
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 838 switch (node->op) {
1283 16 case PrefixUnaryExprNode::OP_MINUS:
1284
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 16 operandType = OpRuleManager::getPrefixMinusResultType(node, operand);
1285 16 break;
1286 28 case PrefixUnaryExprNode::OP_PLUS_PLUS:
1287
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 28 operandType = opRuleManager.getPrefixPlusPlusResultType(node, operand);
1288
1289
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 28 if (operandEntry) {
1290 // In case the lhs is captured, notify the capture about the write access
1291
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 25 if (Capture *lhsCapture = currentScope->symbolTable.lookupCapture(operandEntry->name); lhsCapture)
1292 ✗ lhsCapture->setAccessType(READ_WRITE);
1293
1294 // Update the state of the variable
1295
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 25 operandEntry->updateState(INITIALIZED, node, false);
1296 }
1297
1298 28 break;
1299 7 case PrefixUnaryExprNode::OP_MINUS_MINUS:
1300
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 7 operandType = opRuleManager.getPrefixMinusMinusResultType(node, operand);
1301
1302
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 6 if (operandEntry) {
1303 // In case the lhs is captured, notify the capture about the write access
1304
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 3 if (Capture *lhsCapture = currentScope->symbolTable.lookupCapture(operandEntry->name); lhsCapture)
1305 ✗ lhsCapture->setAccessType(READ_WRITE);
1306
1307 // Update the state of the variable
1308
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 3 operandEntry->updateState(INITIALIZED, node, false);
1309 }
1310
1311 6 break;
1312 561 case PrefixUnaryExprNode::OP_NOT:
1313
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 561 operandType = OpRuleManager::getPrefixNotResultType(node, operand);
1314 561 break;
1315 1 case PrefixUnaryExprNode::OP_BITWISE_NOT:
1316
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 1 operandType = OpRuleManager::getPrefixBitwiseNotResultType(node, operand);
1317 1 break;
1318 162 case PrefixUnaryExprNode::OP_DEREFERENCE:
1319
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 162 operandType = OpRuleManager::getPrefixMulResultType(node, operand);
1320 162 break;
1321 63 case PrefixUnaryExprNode::OP_ADDRESS_OF:
1322
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 63 operandType = OpRuleManager::getPrefixBitwiseAndResultType(node, operand);
1323 63 break;
1324 ✗ default:
1325 − throw CompilerError(UNHANDLED_BRANCH, "PrefixUnaryExpr fall-through"); // GCOV_EXCL_LINE
1326 }
1327
1328
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 837 return ExprResult{node->setEvaluatedSymbolType(operandType, manIdx), operandEntry};
1329 }
1330
1331 77053 std::any TypeChecker::visitPostfixUnaryExpr(PostfixUnaryExprNode *node) {
1332 // If no operator is applied, simply visit the atomic expression
1333
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 77053 if (node->op == PostfixUnaryExprNode::OP_NONE)
1334
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 60995 return visit(node->atomicExpr);
1335
1336 // Visit left side
1337 16058 PostfixUnaryExprNode *lhsNode = node->postfixUnaryExpr;
1338
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 16058 auto lhs = std::any_cast<ExprResult>(visit(lhsNode));
1339 16058 auto [lhsType, lhsEntry] = lhs;
1340
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 16058 HANDLE_UNRESOLVED_TYPE_ER(lhsType)
1341
1342
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 16052 switch (node->op) {
1343 2328 case PostfixUnaryExprNode::OP_SUBSCRIPT: {
1344
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 2328 lhsType = lhsType.removeReferenceWrapper();
1345
1346 // Check if we can apply the subscript operator on the lhs type
1347
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 2328 if (!lhsType.isOneOf({TY_ARRAY, TY_STRING, TY_PTR}))
1348 ✗ SOFT_ERROR_ER(node, OPERATOR_WRONG_DATA_TYPE,
1349 "Can only apply subscript operator on array type, got " + lhsType.getName(true))
1350
1351 // Visit index assignment
1352 2328 AssignExprNode *indexAssignExpr = node->subscriptIndexExpr;
1353
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 2328 QualType indexType = std::any_cast<ExprResult>(visit(indexAssignExpr)).type;
1354
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 2328 HANDLE_UNRESOLVED_TYPE_ER(indexType)
1355 // Check if the index is of the right type
1356
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 2328 if (!indexType.isOneOf({TY_INT, TY_LONG}))
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 3 SOFT_ERROR_ER(node, ARRAY_INDEX_NOT_INT_OR_LONG, "Array index must be of type int or long")
1358
1359 // Check if we have an unsafe operation
1360
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 2327 if (lhsType.isPtr() && !currentScope->doesAllowUnsafeOperations())
1361 ✗ SOFT_ERROR_ER(
1362 node, UNSAFE_OPERATION_IN_SAFE_CONTEXT,
1363 "The subscript operator on pointers is an unsafe operation. Use unsafe blocks if you know what you are doing.")
1364
1365 // Check if we have a hardcoded array index
1366
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 2327 if (lhsType.isArray() && lhsType.getArraySize() != ARRAY_SIZE_UNKNOWN && indexAssignExpr->hasCompileTimeValue()) {
1367
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 34 const int32_t constIndex = indexAssignExpr->getCompileTimeValue().intValue;
1368
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 34 const unsigned int constSize = lhsType.getArraySize();
1369 // Check if we are accessing out-of-bounds memory
1370
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 34 if (constIndex >= static_cast<int32_t>(constSize)) {
1371 1 const std::string idxStr = std::to_string(constIndex);
1372 1 const std::string sizeStr = std::to_string(constSize);
1373
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 1 SOFT_ERROR_ER(node, ARRAY_INDEX_OUT_OF_BOUNDS,
1374 "You are trying to access element with index " + idxStr + " of an array with size " + sizeStr)
1375 1 }
1376 }
1377
1378 // Get item type
1379
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 2326 lhsType = lhsType.getContained();
1380
1381 // Remove heap specifier
1382 2326 lhsType.getSpecifiers().isHeap = false;
1383
1384 2326 break;
1385 }
1386 12101 case PostfixUnaryExprNode::OP_MEMBER_ACCESS: {
1387 12101 const std::string &fieldName = node->identifier;
1388
1389 // Check if lhs is enum or strobj
1390 12101 QualType lhsBaseTy = lhsType;
1391
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 12101 autoDeReference(lhsBaseTy);
1392
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 12101 if (!lhsBaseTy.is(TY_STRUCT))
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 1 SOFT_ERROR_ER(node, INVALID_MEMBER_ACCESS, "Cannot apply member access operator on " + lhsType.getName(false))
1394
1395 // Retrieve registry entry
1396
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 12100 const std::string &structName = lhsBaseTy.getSubType();
1397
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 12100 Scope *structScope = lhsBaseTy.getBodyScope();
1398
1399 // If we only have the generic struct scope, lookup the concrete manifestation scope
1400
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 12100 if (structScope->isGenericScope) {
1401 75 Scope *matchScope = structScope->parent;
1402
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 75 Struct *spiceStruct = StructManager::match(matchScope, structName, lhsBaseTy.getTemplateTypes(), node);
1403
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 75 assert(spiceStruct != nullptr);
1404 75 structScope = spiceStruct->scope;
1405 }
1406
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 12100 assert(!structScope->isGenericScope); // At this point we always expect a substantiation scope
1407
1408 // Get accessed field
1409 12100 std::vector<size_t> indexPath;
1410
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 12100 SymbolTableEntry *memberEntry = structScope->symbolTable.lookupInComposedFields(fieldName, indexPath);
1411
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 12100 if (!memberEntry)
1412
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 2 SOFT_ERROR_ER(node, REFERENCED_UNDEFINED_VARIABLE, "Field '" + node->identifier + "' not found in struct " + structName)
1413
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 12098 const QualType memberType = memberEntry->getQualType();
1414
1415 // Check for insufficient visibility
1416
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 12098 if (structScope->isImportedBy(rootScope) && !memberEntry->getQualType().getBase().isPublic())
1417 ✗ SOFT_ERROR_ER(node, INSUFFICIENT_VISIBILITY, "Cannot access field '" + fieldName + "' due to its private visibility")
1418
1419 // Set field to used
1420 12098 memberEntry->used = true;
1421
1422 // Overwrite type and entry of left side with member type and entry
1423 12098 lhsType = memberType;
1424 12098 lhsEntry = memberEntry;
1425 12098 break;
1426
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 12100 }
1427 1353 case PostfixUnaryExprNode::OP_PLUS_PLUS: {
1428
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 1353 if (lhsEntry) {
1429 // In case the lhs is captured, notify the capture about the write access
1430
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 1348 if (Capture *lhsCapture = currentScope->symbolTable.lookupCapture(lhsEntry->name); lhsCapture)
1431
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 4 lhsCapture->setAccessType(READ_WRITE);
1432
1433 // Update the state of the variable
1434
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 1348 lhsEntry->updateState(INITIALIZED, node, false);
1435 }
1436
1437
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 1353 auto [type, entry] = opRuleManager.getPostfixPlusPlusResultType(node, lhs, 0);
1438 1352 lhsType = type;
1439 1352 lhsEntry = entry;
1440 1352 break;
1441 }
1442 270 case PostfixUnaryExprNode::OP_MINUS_MINUS: {
1443
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 270 if (lhsEntry) {
1444 // In case the lhs is captured, notify the capture about the write access
1445
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 266 if (Capture *lhsCapture = currentScope->symbolTable.lookupCapture(lhsEntry->name); lhsCapture)
1446 ✗ lhsCapture->setAccessType(READ_WRITE);
1447
1448 // Update the state of the variable
1449
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 266 lhsEntry->updateState(INITIALIZED, node, false);
1450 }
1451
1452
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 270 ExprResult result = opRuleManager.getPostfixMinusMinusResultType(node, lhs, 0);
1453 270 lhsType = result.type;
1454 270 lhsEntry = result.entry;
1455 270 break;
1456 }
1457 ✗ default:
1458 − throw CompilerError(UNHANDLED_BRANCH, "PostfixUnaryExpr fall-through"); // GCOV_EXCL_LINE
1459 }
1460
1461
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 16046 if (lhsType.is(TY_INVALID)) {
1462 ✗ const std::string varName = lhsEntry ? lhsEntry->name : "";
1463 ✗ SOFT_ERROR_ER(node, REFERENCED_UNDEFINED_VARIABLE, "Variable '" + varName + "' was referenced before declared")
1464 ✗ }
1465
1466
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 16046 return ExprResult{node->setEvaluatedSymbolType(lhsType, manIdx), lhsEntry};
1467 }
1468
1469 60995 std::any TypeChecker::visitAtomicExpr(AtomicExprNode *node) {
1470 // Check if constant
1471
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 60995 if (node->constant)
1472
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 11919 return visit(node->constant);
1473
1474 // Check if value
1475
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 49076 if (node->value)
1476
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 11362 return visit(node->value);
1477
1478 // Check for builtin calls
1479
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 37714 if (node->builtinCall)
1480
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 1184 return visit(node->builtinCall);
1481
1482 // Check for assign expression within parentheses
1483
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 36530 if (node->assignExpr)
1484
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 523 return visit(node->assignExpr);
1485
1486 // Identifier (local or global variable access)
1487
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 36007 assert(!node->fqIdentifier.empty());
1488
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 36007 if (!accessScope)
1489 36007 accessScope = currentScope;
1490
1491 // Check if a local or global variable can be found by searching for the name
1492 36007 SymbolTableEntry *varEntry = nullptr;
1493
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 36007 if (node->identifierFragments.size() == 1)
1494 71516 varEntry = accessScope->lookup(node->identifierFragments.back());
1495
1496 // If no local or global was found, search in the name registry
1497
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 36007 if (!varEntry) {
1498
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 308 const NameRegistryEntry *registryEntry = sourceFile->getNameRegistryEntry(node->fqIdentifier);
1499
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 308 if (!registryEntry)
1500
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 1 SOFT_ERROR_ER(node, REFERENCED_UNDEFINED_VARIABLE, "The variable '" + node->fqIdentifier + "' could not be found")
1501 307 varEntry = registryEntry->targetEntry;
1502 307 accessScope = registryEntry->targetScope;
1503 }
1504
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 36006 assert(varEntry != nullptr);
1505
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 36006 assert(accessScope != nullptr);
1506
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 36006 AtomicExprNode::VarAccessData &data = node->data.at(manIdx);
1507
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 36006 data = {varEntry, accessScope, accessScope->symbolTable.lookupCapture(varEntry->name)};
1508
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 36006 const QualType varType = varEntry->getQualType();
1509
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 36006 HANDLE_UNRESOLVED_TYPE_ER(varType)
1510
1511
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 35998 if (varType.isOneOf({TY_FUNCTION, TY_PROCEDURE}) && varEntry->global) {
1512 // Check if overloaded function was referenced
1513
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 9 const std::vector<Function *> *manifestations = varEntry->declNode->getFctManifestations(varEntry->name);
1514
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 9 if (manifestations->size() > 1)
1515
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 3 SOFT_ERROR_ER(node, REFERENCED_OVERLOADED_FCT, "Overloaded functions / functions with optional params cannot be referenced")
1516
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 8 if (!manifestations->front()->templateTypes.empty())
1517
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 3 SOFT_ERROR_ER(node, REFERENCED_OVERLOADED_FCT, "Generic functions cannot be referenced")
1518 // Set referenced function to used
1519 7 Function *referencedFunction = manifestations->front();
1520 7 referencedFunction->used = true;
1521 7 referencedFunction->entry->used = true;
1522 }
1523
1524
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 35996 if (varType.is(TY_INVALID))
1525
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 2 SOFT_ERROR_ER(node, USED_BEFORE_DECLARED, "Symbol '" + varEntry->name + "' was used before declared.")
1526
1527 // The base type should be a primitive, struct, interface, function or procedure
1528
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 35994 const QualType baseType = varType.getBase();
1529
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 35994 if (!baseType.isPrimitive() && !baseType.isOneOf({TY_STRUCT, TY_INTERFACE, TY_FUNCTION, TY_PROCEDURE, TY_DYN}))
1530 ✗ SOFT_ERROR_ER(node, INVALID_SYMBOL_ACCESS, "A symbol of type " + varType.getName(false) + " cannot be accessed here")
1531
1532 // Check if is an imported variable
1533
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 35994 if (accessScope->isImportedBy(rootScope)) {
1534 // Check if the entry is public
1535
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 171 if (varEntry->scope->type != ScopeType::ENUM && !varEntry->getQualType().isPublic())
1536
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 1 SOFT_ERROR_ER(node, INSUFFICIENT_VISIBILITY, "Cannot access '" + varEntry->name + "' due to its private visibility")
1537 }
1538
1539 // Check if we have seen a 'this.' prefix, because the generator needs that
1540
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 35993 if (varEntry->scope->type == ScopeType::STRUCT && node->identifierFragments.front() != THIS_VARIABLE_NAME)
1541
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 1 SOFT_ERROR_ER(node, REFERENCED_UNDEFINED_VARIABLE,
1542 "The symbol '" + node->fqIdentifier + "' could not be found. Missing 'this.' prefix?")
1543
1544 // Set symbol table entry to used
1545 35992 varEntry->used = true;
1546
1547 // Retrieve scope for the new scope path fragment
1548
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 35992 if (baseType.is(TY_STRUCT)) {
1549 // Set access scope to struct scope
1550
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 13524 const std::string &structName = baseType.getSubType();
1551
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 13524 const NameRegistryEntry *nameRegistryEntry = sourceFile->getNameRegistryEntry(structName);
1552
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 13524 assert(nameRegistryEntry != nullptr);
1553
1554 // Change the access scope to the struct scope
1555 13524 data.accessScope = accessScope = nameRegistryEntry->targetScope;
1556
1557 // Check if the entry is public if it is imported
1558
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 13524 assert(nameRegistryEntry->targetEntry != nullptr);
1559
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 13524 if (!nameRegistryEntry->targetEntry->getQualType().isPublic() && accessScope->parent->isImportedBy(rootScope))
1560
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 1 SOFT_ERROR_ER(node, INSUFFICIENT_VISIBILITY, "Cannot access struct '" + structName + "' due to its private visibility")
1561 }
1562
1563
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 35991 return ExprResult{node->setEvaluatedSymbolType(varType, manIdx), varEntry};
1564 }
1565
1566 11362 std::any TypeChecker::visitValue(ValueNode *node) {
1567 // Function call
1568
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 11362 if (node->fctCall)
1569 10118 return visit(node->fctCall);
1570
1571 // Array initialization
1572
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 1244 if (node->arrayInitialization)
1573 67 return visit(node->arrayInitialization);
1574
1575 // Struct instantiation
1576
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 1177 if (node->structInstantiation)
1577 177 return visit(node->structInstantiation);
1578
1579 // Lambda function
1580
2/2
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 1000 if (node->lambdaFunc)
1581 9 return visit(node->lambdaFunc);
1582
1583 // Lambda procedure
1584
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 991 if (node->lambdaProc)
1585 28 return visit(node->lambdaProc);
1586
1587 // Lambda expression
1588
2/2
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 963 if (node->lambdaExpr)
1589 1 return visit(node->lambdaExpr);
1590
1591 // Typed nil
1592
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 962 if (node->isNil) {
1593
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 962 const auto nilType = std::any_cast<QualType>(visit(node->nilType));
1594
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 962 HANDLE_UNRESOLVED_TYPE_ER(nilType)
1595
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 962 if (nilType.is(TY_DYN))
1596 ✗ SOFT_ERROR_ER(node->nilType, UNEXPECTED_DYN_TYPE, "Nil must have an explicit type")
1597
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 962 return ExprResult{node->setEvaluatedSymbolType(nilType, manIdx)};
1598 }
1599
1600 − throw CompilerError(UNHANDLED_BRANCH, "Value fall-through"); // GCOV_EXCL_LINE
1601 }
1602
1603 15839 std::any TypeChecker::visitConstant(ConstantNode *node) {
1604 SuperType superType;
1605
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 15839 switch (node->type) {
1606 205 case ConstantNode::TYPE_DOUBLE:
1607 205 superType = TY_DOUBLE;
1608 205 break;
1609 2846 case ConstantNode::TYPE_INT:
1610 2846 superType = TY_INT;
1611 2846 break;
1612 190 case ConstantNode::TYPE_SHORT:
1613 190 superType = TY_SHORT;
1614 190 break;
1615 6012 case ConstantNode::TYPE_LONG:
1616 6012 superType = TY_LONG;
1617 6012 break;
1618 ✗ case ConstantNode::TYPE_BYTE:
1619 ✗ superType = TY_BYTE;
1620 ✗ break;
1621 617 case ConstantNode::TYPE_CHAR:
1622 617 superType = TY_CHAR;
1623 617 break;
1624 2202 case ConstantNode::TYPE_STRING:
1625 2202 superType = TY_STRING;
1626 2202 break;
1627 3767 case ConstantNode::TYPE_BOOL:
1628 3767 superType = TY_BOOL;
1629 3767 break;
1630 − default: // GCOV_EXCL_LINE
1631 − throw CompilerError(UNHANDLED_BRANCH, "Constant fall-through"); // GCOV_EXCL_LINE
1632 }
1633
1634 // Create symbol type
1635
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 15839 QualType symbolType(superType);
1636
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 15839 symbolType.setSpecifiers(TypeSpecifiers::of(superType));
1637
1638
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 15839 return ExprResult{node->setEvaluatedSymbolType(symbolType, manIdx)};
1639 }
1640
1641 10118 std::any TypeChecker::visitFctCall(FctCallNode *node) {
1642
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 10118 FctCallNode::FctCallData &data = node->data.at(manIdx);
1643
1644 // Retrieve arg types
1645 10118 data.argResults.clear();
1646
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 10118 if (node->hasArgs) {
1647
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 7503 data.argResults.reserve(node->argLst->args.size());
1648
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 18660 for (AssignExprNode *arg : node->argLst->args) {
1649 // Visit argument
1650
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 11157 const auto argResult = std::any_cast<ExprResult>(visit(arg));
1651
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 11157 HANDLE_UNRESOLVED_TYPE_ER(argResult.type)
1652
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 11157 assert(!argResult.type.hasAnyGenericParts());
1653 // Save arg type to arg types list
1654
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 11157 data.argResults.push_back(argResult);
1655 }
1656 }
1657
1658 // Retrieve entry of the first fragment
1659 10118 const std::string &firstFrag = node->functionNameFragments.front();
1660
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 10118 SymbolTableEntry *firstFragEntry = currentScope->lookup(firstFrag);
1661
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 10118 if (firstFragEntry) {
1662 // Check if we have seen a 'this.' prefix, because the generator needs that
1663
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 7161 if (firstFragEntry->scope->type == ScopeType::STRUCT && firstFrag != THIS_VARIABLE_NAME)
1664
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 1 SOFT_ERROR_ER(node, REFERENCED_UNDEFINED_VARIABLE,
1665 "The symbol '" + firstFrag + "' could not be found. Missing 'this.' prefix?")
1666
1667 7160 firstFragEntry->used = true;
1668 // Decide of which type the function call is
1669
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 7160 const QualType &baseType = firstFragEntry->getQualType().getBase();
1670
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 7160 HANDLE_UNRESOLVED_TYPE_ER(baseType)
1671
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 7156 if (baseType.isOneOf({TY_STRUCT, TY_INTERFACE})) {
1672
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 5500 data.callType = firstFragEntry->scope->type == ScopeType::GLOBAL ? FctCallNode::TYPE_CTOR : FctCallNode::TYPE_METHOD;
1673
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 1656 } else if (baseType.isOneOf({TY_FUNCTION, TY_PROCEDURE}) && firstFragEntry->scope->type != ScopeType::GLOBAL) {
1674 39 data.callType = FctCallNode::TYPE_FCT_PTR;
1675 }
1676 }
1677
1678 // Get struct name. Retrieve it from alias if required
1679
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 10113 std::string fqFunctionName = node->fqFunctionName;
1680
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 10113 SymbolTableEntry *aliasEntry = rootScope->lookupStrict(fqFunctionName);
1681 10113 SymbolTableEntry *aliasedTypeContainerEntry = nullptr;
1682
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 10113 const bool isAliasType = aliasEntry && aliasEntry->getQualType().is(TY_ALIAS);
1683
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 10113 if (isAliasType) {
1684
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 2 aliasedTypeContainerEntry = rootScope->lookupStrict(aliasEntry->name + ALIAS_CONTAINER_SUFFIX);
1685
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 1 assert(aliasedTypeContainerEntry != nullptr);
1686 // Set alias entry used
1687 1 aliasEntry->used = true;
1688
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 1 fqFunctionName = aliasedTypeContainerEntry->getQualType().getSubType();
1689 }
1690
1691 // Get the concrete template types
1692 10113 QualTypeList concreteTemplateTypes;
1693
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 10113 if (isAliasType) {
1694 // Retrieve concrete template types from type alias
1695
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 1 concreteTemplateTypes = aliasedTypeContainerEntry->getQualType().getTemplateTypes();
1696 // Check if the aliased type specified template types and the struct instantiation does
1697
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 1 if (!concreteTemplateTypes.empty() && node->hasTemplateTypes)
1698 ✗ SOFT_ERROR_ER(node->templateTypeLst, ALIAS_WITH_TEMPLATE_LIST, "The aliased type already has a template list")
1699 }
1700
1701 // Get concrete template types
1702
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 10113 if (node->hasTemplateTypes) {
1703
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 917 for (DataTypeNode *templateTypeNode : node->templateTypeLst->dataTypes) {
1704
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 498 auto templateType = std::any_cast<QualType>(visit(templateTypeNode));
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 498 assert(!templateType.isOneOf({TY_DYN, TY_INVALID}));
1706
1707 // Abort if the type is unresolved
1708
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 498 if (templateType.is(TY_UNRESOLVED))
1709 ✗ HANDLE_UNRESOLVED_TYPE_ER(templateType)
1710
1711 // Check if the given type is generic
1712
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 498 if (templateType.is(TY_GENERIC))
1713 ✗ SOFT_ERROR_ER(templateTypeNode, EXPECTED_NON_GENERIC_TYPE, "You must specify a concrete type here")
1714
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 498 concreteTemplateTypes.push_back(templateType);
1716 }
1717 }
1718
1719 // Check if this is a method call or a normal function call
1720
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 10113 if (data.isMethodCall()) {
1721 // This is a method call
1722
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 4749 data.thisType = firstFragEntry->getQualType();
1723
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 4749 Scope *structBodyScope = data.thisType.getBase().getBodyScope();
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 4749 assert(structBodyScope != nullptr);
1725
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 4749 if (bool success = visitMethodCall(node, structBodyScope, concreteTemplateTypes); !success) // Check if soft errors occurred
1726
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 2 return ExprResult{node->setEvaluatedSymbolType(QualType(TY_UNRESOLVED), manIdx)};
1727
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 4747 assert(data.calleeParentScope != nullptr);
1728
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 5364 } else if (data.isFctPtrCall()) {
1729 // This is a function pointer call
1730
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 39 const QualType &functionType = firstFragEntry->getQualType().getBase();
1731
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 39 assert(functionType.isOneOf({TY_FUNCTION, TY_PROCEDURE}));
1732
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 39 bool success = visitFctPtrCall(node, functionType);
1733
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 39 if (!success) // Check if soft errors occurred
1734 ✗ return ExprResult{node->setEvaluatedSymbolType(QualType(TY_UNRESOLVED), manIdx)};
1735 } else {
1736 // This is an ordinary function call
1737
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 5325 assert(data.isOrdinaryCall() || data.isCtorCall());
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 5327 bool success = visitOrdinaryFctCall(node, concreteTemplateTypes, fqFunctionName);
1739
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 5323 if (!success) // Check if soft errors occurred
1740
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 4 return ExprResult{node->setEvaluatedSymbolType(QualType(TY_UNRESOLVED), manIdx)};
1741
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 5319 assert(data.calleeParentScope != nullptr);
1742
1743 // Only ordinary function calls can be constructors
1744
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 5319 if (data.isCtorCall()) {
1745
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 1448 assert(data.thisType.is(TY_STRUCT));
1746 }
1747 }
1748
1749
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 10105 if (!data.isFctPtrCall()) {
1750 // Check if we were able to find a function
1751
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 10066 if (!data.callee) {
1752 // Build error message
1753
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 14 const std::string functionName = data.isCtorCall() ? CTOR_FUNCTION_NAME : node->functionNameFragments.back();
1754 12 ParamList errArgTypes;
1755
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 12 errArgTypes.reserve(data.argResults.size());
1756
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 19 for (const auto &[type, _] : data.argResults)
1757
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 7 errArgTypes.push_back({type, false});
1758
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 12 const std::string signature = Function::getSignature(functionName, data.thisType, QualType(TY_DYN), errArgTypes, {}, false);
1759 // Throw error
1760
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 12 SOFT_ERROR_ER(node, REFERENCED_UNDEFINED_FUNCTION, "Function/procedure '" + signature + "' could not be found")
1761 12 }
1762
1763 // Check if we need to request a re-visit, because the function body was not type-checked yet
1764
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 10054 requestRevisitIfRequired(data.callee);
1765
1766 // Get function entry from function object
1767 10054 SymbolTableEntry *functionEntry = data.callee->entry;
1768
1769 // Check if the called function has sufficient visibility
1770
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 10054 data.isImported = data.calleeParentScope->isImportedBy(rootScope);
1771
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 10054 if (data.isImported && !functionEntry->getQualType().isPublic()) {
1772
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 1 const QualType functionEntryType = functionEntry->getQualType();
1773
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 1 const std::string signature = data.callee->getSignature();
1774
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 1 if (functionEntryType.is(TY_FUNCTION))
1775
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 1 SOFT_ERROR_ER(node, INSUFFICIENT_VISIBILITY, "Function '" + signature + "' has insufficient visibility")
1776 else
1777 ✗ SOFT_ERROR_ER(node, INSUFFICIENT_VISIBILITY, "Procedure '" + signature + "' has insufficient visibility")
1778 1 }
1779 }
1780
1781 // Retrieve return type
1782
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 20145 const bool isFct = data.isFctPtrCall() ? firstFragEntry->getQualType().getBase().is(TY_FUNCTION) : data.callee->isFunction();
1783 10092 QualType returnType;
1784
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 10092 if (data.isFctPtrCall()) {
1785
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 39 returnType = isFct ? firstFragEntry->getQualType().getBase().getFunctionReturnType() : QualType(TY_BOOL);
1786
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 10053 } else if (data.isCtorCall()) {
1787 // Set return type to 'this' type
1788 1446 returnType = data.thisType;
1789
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 17214 } else if (data.callee->isProcedure()) {
1790 // Procedures always have the return type 'dyn'
1791
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 2242 returnType = QualType(TY_DYN);
1792 } else {
1793 6365 returnType = data.callee->returnType;
1794 }
1795
1796 // Initialize return type if required
1797 10092 SymbolTableEntry *anonymousSymbol = nullptr;
1798
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 10092 if (returnType.isBase(TY_STRUCT)) {
1799
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 2277 QualType returnBaseType = returnType.getBase();
1800
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 2277 const std::string &structName = returnBaseType.getSubType();
1801
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 2277 Scope *matchScope = returnBaseType.getBodyScope()->parent;
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 2277 assert(matchScope != nullptr);
1803
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 2277 Struct *spiceStruct = StructManager::match(matchScope, structName, returnBaseType.getTemplateTypes(), node);
1804
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 2277 if (!spiceStruct) {
1805 ✗ const std::string signature = Struct::getSignature(structName, returnBaseType.getTemplateTypes());
1806 ✗ SOFT_ERROR_ER(node, UNKNOWN_DATATYPE,
1807 "Could not find struct candidate for struct '" + signature + "'. Do the template types match?")
1808 ✗ }
1809
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 2277 returnType = returnType.getWithBodyScope(spiceStruct->scope).replaceBaseType(returnBaseType);
1810
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 2277 returnType = mapImportedScopeTypeToLocalType(returnType.getBase().getBodyScope(), returnType);
1812
1813 // Add anonymous symbol to keep track of de-allocation
1814
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 2277 if (returnType.is(TY_STRUCT))
1815
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 2030 anonymousSymbol = currentScope->symbolTable.insertAnonymous(returnType, node);
1816 }
1817
1818 // Remove public specifier to not have public local variables
1819 10092 returnType.getSpecifiers().isPublic = false;
1820
1821 // Check if the return value gets used
1822
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 10092 if (isFct && !node->hasReturnValueReceiver())
1823
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 132 warnings.emplace_back(node->codeLoc, UNUSED_RETURN_VALUE, "The return value of the function call is unused");
1824
1825
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 10092 return ExprResult{node->setEvaluatedSymbolType(returnType, manIdx), anonymousSymbol};
1826 10115 }
1827
1828 5325 bool TypeChecker::visitOrdinaryFctCall(FctCallNode *node, QualTypeList &templateTypes, std::string fqFunctionName) {
1829
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 5325 FctCallNode::FctCallData &data = node->data.at(manIdx);
1830
1831 // Check if this is a ctor call to the String type
1832
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 5325 if (node->functionNameFragments.size() == 1) {
1833
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 21056 for (const auto &[typeName, runtimeModule] : TYPE_NAME_TO_RT_MODULE_MAPPING)
1834
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 15792 if (fqFunctionName == typeName && !sourceFile->isRT(runtimeModule))
1835
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 439 sourceFile->requestRuntimeModule(runtimeModule);
1836
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 63168 for (const auto &[fctName, runtimeModule] : FCT_NAME_TO_RT_MODULE_MAPPING)
1837
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 57904 if (fqFunctionName == fctName && !sourceFile->isRT(runtimeModule))
1838
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 369 sourceFile->requestRuntimeModule(runtimeModule);
1839 }
1840
1841 // Check if the type is generic (possible in case of ctor call)
1842
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 5325 const QualType *genericType = rootScope->lookupGenericType(fqFunctionName);
1843
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 5325 if (genericType && typeMapping.contains(fqFunctionName)) {
1844
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 1 const QualType &replacementType = typeMapping.at(fqFunctionName);
1845
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 1 if (replacementType.is(TY_STRUCT))
1846
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 1 fqFunctionName = replacementType.getSubType();
1847 }
1848
1849 // Check if the exported name registry contains that function name
1850
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 5325 const NameRegistryEntry *functionRegistryEntry = sourceFile->getNameRegistryEntry(fqFunctionName);
1851
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 5325 if (!functionRegistryEntry) {
1852
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 3 const std::string msg = "Function/procedure/struct '" + node->functionNameFragments.back() + "' could not be found";
1853
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 3 SOFT_ERROR_BOOL(node, REFERENCED_UNDEFINED_FUNCTION, msg)
1854 3 }
1855 5322 const SymbolTableEntry *functionEntry = functionRegistryEntry->targetEntry;
1856 5322 data.calleeParentScope = functionRegistryEntry->targetScope;
1857
1858 // Check if the target symbol is a struct -> this must be a constructor call
1859
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 5322 if (functionEntry != nullptr && functionEntry->getQualType().is(TY_STRUCT))
1860 1449 data.callType = FctCallNode::TYPE_CTOR;
1861
1862 // For constructor calls, do some preparation
1863
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 5322 std::string functionName = node->functionNameFragments.back();
1864
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 5322 if (data.isCtorCall()) {
1865 1449 const NameRegistryEntry *structRegistryEntry = functionRegistryEntry;
1866 1449 const SymbolTableEntry *structEntry = functionEntry;
1867
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 1449 const std::string structName = structRegistryEntry->targetEntry->name;
1868
1869 // Substantiate potentially generic this struct
1870
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 1449 const Struct *thisStruct = StructManager::match(structEntry->scope, structName, templateTypes, node);
1871
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 1449 if (!thisStruct) {
1872
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 1 const std::string signature = Struct::getSignature(structName, templateTypes);
1873
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 1 SOFT_ERROR_BOOL(node, UNKNOWN_DATATYPE,
1874 "Could not find struct candidate for struct '" + signature + "'. Do the template types match?")
1875 1 }
1876
1877 // Override function name
1878
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 1448 functionName = CTOR_FUNCTION_NAME;
1879
1880 // Set the 'this' type of the function to the struct type
1881
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 1448 data.thisType = structEntry->getQualType().getWithBodyScope(thisStruct->scope);
1882 1448 data.calleeParentScope = thisStruct->scope;
1883
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 1449 }
1884
1885 // Attach the concrete template types to the 'this' type
1886
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 5321 if (!data.thisType.is(TY_DYN) && !templateTypes.empty())
1887
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 295 data.thisType = data.thisType.getWithTemplateTypes(templateTypes);
1888
1889 // Map local arg types to imported types
1890 5321 ArgList localArgs;
1891
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 5321 localArgs.reserve(data.argResults.size());
1892
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 13072 for (const ExprResult &argResult : data.argResults)
1893
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 7751 localArgs.emplace_back(mapLocalTypeToImportedScopeType(data.calleeParentScope, argResult.type), argResult.isTemporary());
1894
1895 // Map local template types to imported types
1896
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 5820 for (QualType &templateType : templateTypes)
1897
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 499 templateType = mapLocalTypeToImportedScopeType(data.calleeParentScope, templateType);
1898
1899 // Retrieve function object
1900 5321 Scope *matchScope = data.calleeParentScope;
1901
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 5321 data.callee = FunctionManager::match(this, matchScope, functionName, data.thisType, localArgs, templateTypes, false, node);
1902
1903 5319 return true;
1904 5324 }
1905
1906 39 bool TypeChecker::visitFctPtrCall(const FctCallNode *node, const QualType &functionType) const {
1907
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 39 const auto &[callType, isImported, thisType, argResults, callee, calleeParentScope] = node->data.at(manIdx);
1908
1909 // Check if the given argument types match the type
1910
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 39 const QualTypeList expectedArgTypes = functionType.getFunctionParamTypes();
1911
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 39 if (argResults.size() != expectedArgTypes.size())
1912 ✗ SOFT_ERROR_BOOL(node, REFERENCED_UNDEFINED_FUNCTION, "Expected and actual number of arguments do not match")
1913
1914 // Create resolver function, that always returns a nullptr
1915 39 TypeMatcher::ResolverFct resolverFct = [](const std::string &genericTypeName) { return nullptr; };
1916
1917
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 70 for (size_t i = 0; i < argResults.size(); i++) {
1918
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 31 const QualType &actualType = argResults.at(i).type;
1919
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 31 const QualType &expectedType = expectedArgTypes.at(i);
1920
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 31 if (TypeMapping tm; !TypeMatcher::matchRequestedToCandidateType(expectedType, actualType, tm, resolverFct, false))
1921
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 31 SOFT_ERROR_BOOL(node->argLst->args.at(i), REFERENCED_UNDEFINED_FUNCTION,
1922 "Expected " + expectedType.getName(false) + " but got " + actualType.getName(false))
1923 }
1924 39 return true;
1925 39 }
1926
1927 4749 bool TypeChecker::visitMethodCall(FctCallNode *node, Scope *structScope, QualTypeList &templateTypes) {
1928
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 4749 auto &[callType, isImported, thisType, argResults, callee, calleeParentScope] = node->data.at(manIdx);
1929
1930 // Traverse through structs - the first fragment is already looked up and the last one is the method name
1931
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 5375 for (size_t i = 1; i < node->functionNameFragments.size() - 1; i++) {
1932
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 628 const std::string &identifier = node->functionNameFragments.at(i);
1933
1934 // Retrieve field entry
1935 628 SymbolTableEntry *fieldEntry = structScope->lookupStrict(identifier);
1936
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 628 if (!fieldEntry) {
1937
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 1 const std::string name = thisType.getBase().getName(false, true);
1938
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 1 SOFT_ERROR_BOOL(node, ACCESS_TO_NON_EXISTING_MEMBER,
1939 "The type '" + name + "' does not have a member with the name '" + identifier + "'")
1940 1 }
1941
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 627 if (!fieldEntry->getQualType().getBase().isOneOf({TY_STRUCT, TY_INTERFACE}))
1942
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 1 SOFT_ERROR_BOOL(node, INVALID_MEMBER_ACCESS,
1943 "Cannot call a method on '" + identifier + "', since it is no struct or interface")
1944 626 fieldEntry->used = true;
1945
1946 // Get struct type and scope
1947
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 626 thisType = fieldEntry->getQualType();
1948
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 626 structScope = thisType.getBase().getBodyScope();
1949
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 626 assert(structScope != nullptr);
1950 }
1951
1952
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 4747 if (thisType.is(TY_INTERFACE))
1953 ✗ SOFT_ERROR_BOOL(node, INVALID_MEMBER_ACCESS, "Cannot call a method on an interface")
1954
1955 // Map local arg types to imported types
1956 4747 Scope *matchScope = calleeParentScope = structScope;
1957 4747 ArgList localArgs;
1958
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 8116 for (const ExprResult &argResult : argResults)
1959
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 3369 localArgs.emplace_back(mapLocalTypeToImportedScopeType(calleeParentScope, argResult.type), argResult.isTemporary());
1960
1961 // Map local template types to imported types
1962
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 4747 for (QualType &templateType : templateTypes)
1963 ✗ templateType = mapLocalTypeToImportedScopeType(calleeParentScope, templateType);
1964
1965 // 'this' type
1966 4747 QualType localThisType = thisType;
1967
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 4747 autoDeReference(localThisType);
1968
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 4747 localThisType = mapLocalTypeToImportedScopeType(calleeParentScope, localThisType);
1969
1970 // Retrieve function object
1971 4747 const std::string &functionName = node->functionNameFragments.back();
1972
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 4747 callee = FunctionManager::match(this, matchScope, functionName, localThisType, localArgs, templateTypes, false, node);
1973
1974 4747 return true;
1975 4747 }
1976
1977 67 std::any TypeChecker::visitArrayInitialization(ArrayInitializationNode *node) {
1978
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 67 QualType actualItemType(TY_DYN);
1979 // Check if all values have the same type
1980
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 67 if (node->itemLst) {
1981 65 node->actualSize = static_cast<long>(node->itemLst->args.size());
1982
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 499 for (AssignExprNode *arg : node->itemLst->args) {
1983
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 435 const QualType itemType = std::any_cast<ExprResult>(visit(arg)).type;
1984
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 435 HANDLE_UNRESOLVED_TYPE_ER(itemType)
1985
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 435 if (actualItemType.is(TY_DYN)) // Perform type inference
1986 65 actualItemType = itemType;
1987
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 370 else if (itemType != actualItemType) // Check if types are matching
1988
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 1 SOFT_ERROR_ER(arg, ARRAY_ITEM_TYPE_NOT_MATCHING,
1989 "All provided values have to be of the same data type. You provided " + actualItemType.getName(false) +
1990 " and " + itemType.getName(false))
1991 }
1992 }
1993
1994
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 66 const QualType arrayType = actualItemType.toArray(node, node->actualSize, true);
1995
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 66 return ExprResult{node->setEvaluatedSymbolType(arrayType, manIdx)};
1996 }
1997
1998 177 std::any TypeChecker::visitStructInstantiation(StructInstantiationNode *node) {
1999 // Get struct name. Retrieve it from alias if required
2000
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 177 std::string structName = node->fqStructName;
2001
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 177 SymbolTableEntry *aliasEntry = rootScope->lookupStrict(structName);
2002 177 SymbolTableEntry *aliasedTypeContainerEntry = nullptr;
2003
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 177 const bool isAliasType = aliasEntry && aliasEntry->getQualType().is(TY_ALIAS);
2004
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 177 if (isAliasType) {
2005
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 2 aliasedTypeContainerEntry = rootScope->lookupStrict(aliasEntry->name + ALIAS_CONTAINER_SUFFIX);
2006
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 1 assert(aliasedTypeContainerEntry != nullptr);
2007 // Set alias entry used
2008 1 aliasEntry->used = true;
2009
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 1 structName = aliasedTypeContainerEntry->getQualType().getSubType();
2010 }
2011
2012 // Check if access scope was altered
2013
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 177 if (accessScope != nullptr && accessScope != currentScope)
2014 ✗ SOFT_ERROR_ER(node, REFERENCED_UNDEFINED_STRUCT, "Cannot find struct '" + structName + "'")
2015
2016 // Retrieve struct
2017
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 177 const NameRegistryEntry *registryEntry = sourceFile->getNameRegistryEntry(structName);
2018
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 177 if (!registryEntry)
2019
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 1 SOFT_ERROR_ER(node, REFERENCED_UNDEFINED_STRUCT, "Cannot find struct '" + structName + "'")
2020
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 176 assert(registryEntry->targetEntry != nullptr && registryEntry->targetScope != nullptr);
2021 176 SymbolTableEntry *structEntry = registryEntry->targetEntry;
2022 176 Scope *structScope = accessScope = registryEntry->targetScope;
2023
2024 // Get struct type
2025
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 176 QualType structType = structEntry->getQualType();
2026
2027 // Get the concrete template types
2028 176 QualTypeList concreteTemplateTypes;
2029
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 176 if (isAliasType) {
2030 // Retrieve concrete template types from type alias
2031
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 1 concreteTemplateTypes = aliasedTypeContainerEntry->getQualType().getTemplateTypes();
2032 // Check if the aliased type specified template types and the struct instantiation does
2033
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 1 if (!concreteTemplateTypes.empty() && node->templateTypeLst)
2034 ✗ SOFT_ERROR_ER(node->templateTypeLst, ALIAS_WITH_TEMPLATE_LIST, "The aliased type already has a template list")
2035 }
2036
2037
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 176 if (node->templateTypeLst) {
2038
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 14 concreteTemplateTypes.reserve(node->templateTypeLst->dataTypes.size());
2039
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 35 for (DataTypeNode *dataType : node->templateTypeLst->dataTypes) {
2040
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 21 auto concreteType = std::any_cast<QualType>(visit(dataType));
2041
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 21 HANDLE_UNRESOLVED_TYPE_ER(concreteType)
2042 // Check if generic type
2043
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 21 if (concreteType.is(TY_GENERIC))
2044 ✗ SOFT_ERROR_ER(dataType, EXPECTED_NON_GENERIC_TYPE, "Struct instantiations may only take concrete template types")
2045
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 21 concreteTemplateTypes.push_back(concreteType);
2046 }
2047 }
2048
2049 // Get the struct instance
2050
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 176 structName = structEntry->name;
2051
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 176 Struct *spiceStruct = StructManager::match(structScope->parent, structName, concreteTemplateTypes, node);
2052
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 176 if (!spiceStruct) {
2053 ✗ const std::string structSignature = Struct::getSignature(structName, concreteTemplateTypes);
2054 ✗ SOFT_ERROR_ER(node, REFERENCED_UNDEFINED_STRUCT, "Struct '" + structSignature + "' could not be found")
2055 ✗ }
2056
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 176 node->instantiatedStructs.at(manIdx) = spiceStruct;
2057
2058 // Struct instantiation for an inheriting struct is forbidden, because the vtable needs to be initialized and this is done in
2059 // the ctor of the struct, which is never called in case of struct instantiation
2060
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 176 if (!spiceStruct->interfaceTypes.empty())
2061
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 3 SOFT_ERROR_ER(node, INVALID_STRUCT_INSTANTIATION, "Struct instantiations for inheriting structs are forbidden")
2062
2063 // Use scope of concrete substantiation and not the scope of the generic type
2064 175 structScope = spiceStruct->scope;
2065
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 175 structType = structType.getWithBodyScope(structScope);
2066
2067 // Set template types to the struct
2068 175 QualTypeList templateTypes;
2069
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 197 for (const GenericType &genericType : spiceStruct->templateTypes)
2070
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 22 templateTypes.emplace_back(genericType);
2071
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 175 structType = structType.getWithTemplateTypes(templateTypes);
2072
2073 // Check if the number of fields matches
2074
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 175 if (node->fieldLst) { // Check if any fields are passed. Empty braces are also allowed
2075
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 161 if (spiceStruct->fieldTypes.size() != node->fieldLst->args.size())
2076
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 3 SOFT_ERROR_ER(node->fieldLst, NUMBER_OF_FIELDS_NOT_MATCHING,
2077 "You've passed too less/many field values. Pass either none or all of them")
2078
2079 // Check if the field types are matching
2080 160 const size_t fieldCount = spiceStruct->fieldTypes.size();
2081
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 160 const size_t explicitFieldsStartIdx = structScope->getFieldCount() - fieldCount;
2082
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 404 for (size_t i = 0; i < node->fieldLst->args.size(); i++) {
2083 // Get actual type
2084
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 245 AssignExprNode *assignExpr = node->fieldLst->args.at(i);
2085
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 245 auto fieldResult = std::any_cast<ExprResult>(visit(assignExpr));
2086
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 245 HANDLE_UNRESOLVED_TYPE_ER(fieldResult.type)
2087 // Get expected type
2088
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 245 SymbolTableEntry *expectedField = structScope->lookupField(explicitFieldsStartIdx + i);
2089
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 245 assert(expectedField != nullptr);
2090
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 245 const ExprResult expected = {expectedField->getQualType(), expectedField};
2091
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 245 const bool rhsIsImmediate = assignExpr->hasCompileTimeValue();
2092
2093 // Check if actual type matches expected type
2094
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 245 (void)opRuleManager.getFieldAssignResultType(assignExpr, expected, fieldResult, rhsIsImmediate, true);
2095
2096 // If there is an anonymous entry attached (e.g. for struct instantiation), delete it
2097
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 244 if (fieldResult.entry != nullptr && fieldResult.entry->anonymous) {
2098
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 1 currentScope->symbolTable.deleteAnonymous(fieldResult.entry->name);
2099 1 fieldResult.entry = nullptr;
2100 }
2101 }
2102 } else {
2103
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 57 for (QualType &fieldType : spiceStruct->fieldTypes) {
2104
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 43 if (fieldType.isRef())
2105 ✗ SOFT_ERROR_ER(node, REFERENCE_WITHOUT_INITIALIZER,
2106 "The struct takes at least one reference field. You need to instantiate it with all fields.")
2107 }
2108 }
2109
2110 // Update type of struct entry
2111
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 173 structEntry->updateType(structType, true);
2112
2113 // If not all values are constant, insert anonymous symbol to keep track of dtor calls for de-allocation
2114 173 SymbolTableEntry *anonymousEntry = nullptr;
2115
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 173 if (node->fieldLst != nullptr)
2116
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 357 if (std::ranges::any_of(node->fieldLst->args, [](const AssignExprNode *field) { return !field->hasCompileTimeValue(); }))
2117
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 134 anonymousEntry = currentScope->symbolTable.insertAnonymous(structType, node);
2118
2119 // Remove public specifier to not have public local variables
2120 173 structType.getSpecifiers().isPublic = false;
2121
2122
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 173 return ExprResult{node->setEvaluatedSymbolType(structType, manIdx), anonymousEntry};
2123 179 }
2124
2125 9 std::any TypeChecker::visitLambdaFunc(LambdaFuncNode *node) {
2126 // Check if all control paths in the lambda body return
2127 9 bool returnsOnAllControlPaths = true;
2128
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 9 if (!node->returnsOnAllControlPaths(&returnsOnAllControlPaths))
2129
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 3 SOFT_ERROR_ER(node, MISSING_RETURN_STMT, "Not all control paths of this lambda function have a return statement")
2130
2131 // Change to function scope
2132
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 8 Scope *bodyScope = currentScope->getChildScope(node->getScopeId());
2133
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 8 ScopeHandle scopeHandle(this, bodyScope, ScopeType::LAMBDA_BODY);
2134
2135 // Visit return type
2136
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 8 auto returnType = std::any_cast<QualType>(visit(node->returnType));
2137
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 8 HANDLE_UNRESOLVED_TYPE_QT(returnType)
2138
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 8 if (returnType.is(TY_DYN))
2139
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 3 SOFT_ERROR_ER(node, UNEXPECTED_DYN_TYPE, "Dyn return types are not allowed")
2140
2141 // Set the type of the result variable
2142
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 21 SymbolTableEntry *resultVarEntry = currentScope->lookupStrict(RETURN_VARIABLE_NAME);
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 7 assert(resultVarEntry != nullptr);
2144
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 7 resultVarEntry->updateType(returnType, true);
2145 7 resultVarEntry->used = true;
2146
2147 // Visit parameters
2148 7 QualTypeList paramTypes;
2149 7 ParamList paramList;
2150
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 7 if (node->hasParams) {
2151 // Visit param list to retrieve the param names
2152
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 6 auto namedParamList = std::any_cast<NamedParamList>(visit(node->paramLst));
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 16 for (const auto &[name, qualType, isOptional] : namedParamList) {
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 10 if (isOptional)
2155 ✗ softError(node, LAMBDA_WITH_OPTIONAL_PARAMS, "Lambdas cannot have optional parameters");
2156
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 10 paramTypes.push_back(qualType);
2158
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 10 paramList.push_back({qualType, isOptional});
2159 }
2160 6 }
2161
2162 // Visit lambda body
2163
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 7 visit(node->body);
2164
2165 // Leave function body scope
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 6 scopeHandle.leaveScopeEarly();
2167
2168 // Prepare type of function
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 6 const QualType functionType = QualType(TY_FUNCTION)
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 6 .getWithFunctionParamAndReturnTypes(returnType, paramTypes)
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 6 .getWithLambdaCaptures(!bodyScope->symbolTable.captures.empty());
2172
2173 // Create function object
2174
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 6 const std::string fctName = "lambda." + node->codeLoc.toPrettyLineAndColumn();
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 6 node->manifestations.at(manIdx) = Function(fctName, nullptr, QualType(TY_DYN), returnType, paramList, {}, node);
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 6 node->manifestations.at(manIdx).bodyScope = bodyScope;
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 6 node->manifestations.at(manIdx).mangleSuffix = "." + std::to_string(manIdx);
2178
2179 // Check special requirements if this is an async lambda
2180
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 6 (void)checkAsyncLambdaCaptureRules(node, node->lambdaAttr);
2181
2182
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 6 return ExprResult{node->setEvaluatedSymbolType(functionType, manIdx)};
2183 10 }
2184
2185 28 std::any TypeChecker::visitLambdaProc(LambdaProcNode *node) {
2186 // Mark unreachable statements
2187 28 bool doSetPredecessorsUnreachable = true;
2188
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 28 node->returnsOnAllControlPaths(&doSetPredecessorsUnreachable);
2189
2190 // Change to function scope
2191
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 28 Scope *bodyScope = currentScope->getChildScope(node->getScopeId());
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 28 ScopeHandle scopeHandle(this, bodyScope, ScopeType::LAMBDA_BODY);
2193
2194 // Visit parameters
2195 28 QualTypeList paramTypes;
2196 28 ParamList paramList;
2197
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 28 if (node->hasParams) {
2198 // Visit param list to retrieve the param names
2199
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 7 auto namedParamList = std::any_cast<NamedParamList>(visit(node->paramLst));
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 18 for (const auto &[_, qualType, isOptional] : namedParamList) {
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 11 if (isOptional)
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 2 softError(node, LAMBDA_WITH_OPTIONAL_PARAMS, "Lambdas cannot have optional parameters");
2203
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 11 paramTypes.push_back(qualType);
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 11 paramList.push_back({qualType, isOptional});
2206 }
2207 7 }
2208
2209 // Visit lambda body
2210
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 28 visit(node->body);
2211
2212 // Leave function body scope
2213
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 28 scopeHandle.leaveScopeEarly();
2214
2215 // Prepare type of function
2216
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 28 const QualType functionType = QualType(TY_PROCEDURE)
2217
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 28 .getWithFunctionParamAndReturnTypes(QualType(TY_DYN), paramTypes)
2218
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 28 .getWithLambdaCaptures(!bodyScope->symbolTable.captures.empty());
2219
2220 // Create function object
2221
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 28 const std::string fctName = "lambda." + node->codeLoc.toPrettyLineAndColumn();
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 28 node->manifestations.at(manIdx) = Function(fctName, nullptr, QualType(TY_DYN), QualType(TY_DYN), paramList, {}, node);
2223
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 28 node->manifestations.at(manIdx).bodyScope = bodyScope;
2224
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 28 node->manifestations.at(manIdx).mangleSuffix = "." + std::to_string(manIdx);
2225
2226 // Check special requirements if this is an async lambda
2227
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 28 (void)checkAsyncLambdaCaptureRules(node, node->lambdaAttr);
2228
2229
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 56 return ExprResult{node->setEvaluatedSymbolType(functionType, manIdx)};
2230 28 }
2231
2232 1 std::any TypeChecker::visitLambdaExpr(LambdaExprNode *node) {
2233 // Change to function scope
2234
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 1 Scope *bodyScope = currentScope->getChildScope(node->getScopeId());
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 1 ScopeHandle scopeHandle(this, bodyScope, ScopeType::LAMBDA_BODY);
2236
2237 // Visit parameters
2238 1 QualTypeList paramTypes;
2239 1 ParamList paramList;
2240
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 1 if (node->hasParams) {
2241 // Visit param list to retrieve the param names
2242
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 1 auto namedParamList = std::any_cast<NamedParamList>(visit(node->paramLst));
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 3 for (const NamedParam &param : namedParamList) {
2244
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 2 if (param.isOptional)
2245 ✗ softError(node, LAMBDA_WITH_OPTIONAL_PARAMS, "Lambdas cannot have optional parameters");
2246
2247
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 2 paramTypes.push_back(param.qualType);
2248
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 2 paramList.push_back({param.qualType, param.isOptional});
2249 }
2250 1 }
2251
2252 // Visit lambda expression
2253
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 1 QualType returnType = std::any_cast<ExprResult>(visit(node->lambdaExpr)).type;
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 1 HANDLE_UNRESOLVED_TYPE_ER(returnType)
2255
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 1 if (returnType.is(TY_DYN))
2256 ✗ SOFT_ERROR_ER(node, UNEXPECTED_DYN_TYPE, "Dyn return types are not allowed")
2257
2258 // Leave function body scope
2259
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 1 scopeHandle.leaveScopeEarly();
2260
2261 // Prepare type of function
2262
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 1 const SuperType superType = returnType.is(TY_DYN) ? TY_PROCEDURE : TY_FUNCTION;
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 1 const QualType functionType = QualType(superType)
2264
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 1 .getWithFunctionParamAndReturnTypes(returnType, paramTypes)
2265
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 1 .getWithLambdaCaptures(!bodyScope->symbolTable.captures.empty());
2266
2267 // Create function object
2268
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 1 const std::string fctName = "lambda." + node->codeLoc.toPrettyLineAndColumn();
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 1 node->manifestations.at(manIdx) = Function(fctName, nullptr, QualType(TY_DYN), returnType, paramList, {}, node);
2270
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 1 node->manifestations.at(manIdx).bodyScope = bodyScope;
2271
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 1 node->manifestations.at(manIdx).mangleSuffix = "." + std::to_string(manIdx);
2272
2273
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 1 return ExprResult{node->setEvaluatedSymbolType(functionType, manIdx)};
2274 1 }
2275
2276 38607 std::any TypeChecker::visitDataType(DataTypeNode *node) {
2277 // Visit base data type
2278
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 38607 auto type = std::any_cast<QualType>(visit(node->baseDataType));
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 38607 HANDLE_UNRESOLVED_TYPE_QT(type)
2280
2281
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 38604 std::queue<DataTypeNode::TypeModifier> tmQueue = node->tmQueue;
2282
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 48580 while (!tmQueue.empty()) {
2283
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 9984 auto [modifierType, hasSize, hardcodedSize, sizeVarName] = tmQueue.front();
2284
2285 // Only the outermost array can have an unknown size
2286
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 9984 if (type.isArray() && type.getArraySize() == ARRAY_SIZE_UNKNOWN)
2287
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 6 SOFT_ERROR_QT(node, ARRAY_SIZE_INVALID,
2288 "Usage of incomplete array type. Only the outermost array type may have unknown size")
2289
2290
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 9982 switch (modifierType) {
2291 4492 case DataTypeNode::TYPE_PTR: {
2292
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 4492 type = type.toPtr(node);
2293 4490 break;
2294 }
2295 5352 case DataTypeNode::TYPE_REF: {
2296
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 5352 type = type.toRef(node);
2297 5352 break;
2298 }
2299 138 case DataTypeNode::TYPE_ARRAY: {
2300 138 const std::string &varName = sizeVarName;
2301
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 138 if (!varName.empty()) {
2302
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 35 const SymbolTableEntry *globalVar = rootScope->lookupStrict(varName);
2303
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 35 if (!globalVar)
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 1 SOFT_ERROR_QT(node, REFERENCED_UNDEFINED_VARIABLE, "Could not find global variable '" + varName + "' ")
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 34 if (!globalVar->getQualType().isConst())
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 3 SOFT_ERROR_QT(node, EXPECTED_CONST_VARIABLE, "The size of the array must be known at compile time")
2307
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 33 if (!globalVar->getQualType().is(TY_INT))
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 3 SOFT_ERROR_QT(node, OPERATOR_WRONG_DATA_TYPE, "Expected variable of type int")
2309
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 32 hardcodedSize = globalVar->declNode->getCompileTimeValue().intValue;
2310 }
2311
2312
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 135 if (hasSize && hardcodedSize <= 1)
2313 ✗ SOFT_ERROR_QT(node, ARRAY_SIZE_INVALID, "The size of an array must be > 1 and explicitly stated")
2314
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 135 type = type.toArray(node, hardcodedSize);
2315 134 break;
2316 }
2317 − default: // GCOV_EXCL_LINE
2318 − throw CompilerError(UNHANDLED_BRANCH, "Modifier type fall-through"); // GCOV_EXCL_LINE
2319 }
2320 9976 tmQueue.pop();
2321
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 9984 }
2322
2323 // Attach the specifiers to the type
2324
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 38596 if (node->specifierLst) {
2325
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 16612 const QualType baseType = type.getBase();
2326
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 35723 for (const SpecifierNode *specifier : node->specifierLst->specifiers) {
2327
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 19113 if (specifier->type == SpecifierNode::TY_CONST) {
2328 8324 type.getSpecifiers().isConst = true;
2329
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 10789 } else if (specifier->type == SpecifierNode::TY_SIGNED) {
2330
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 2 if (!baseType.isOneOf({TY_INT, TY_LONG, TY_SHORT, TY_BYTE, TY_CHAR, TY_GENERIC}))
2331 ✗ SOFT_ERROR_QT(specifier, SPECIFIER_AT_ILLEGAL_CONTEXT, "Cannot use this specifier on type " + baseType.getName(false))
2332 2 type.getSpecifiers().isSigned = true;
2333 2 type.getSpecifiers().isUnsigned = false;
2334
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 10787 } else if (specifier->type == SpecifierNode::TY_UNSIGNED) {
2335
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 7443 if (!baseType.isOneOf({TY_INT, TY_LONG, TY_SHORT, TY_BYTE, TY_CHAR, TY_GENERIC}))
2336 ✗ SOFT_ERROR_QT(specifier, SPECIFIER_AT_ILLEGAL_CONTEXT, "Cannot use this specifier on type " + baseType.getName(false))
2337 7443 type.getSpecifiers().isSigned = false;
2338 7443 type.getSpecifiers().isUnsigned = true;
2339
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 3344 } else if (specifier->type == SpecifierNode::TY_HEAP) {
2340 // Heap variables can only be pointers
2341
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 2894 if (!type.removeReferenceWrapper().isOneOf({TY_PTR, TY_ARRAY, TY_STRING}))
2342
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 1 SOFT_ERROR_QT(specifier, SPECIFIER_AT_ILLEGAL_CONTEXT,
2343 "The heap specifier can only be applied to symbols of pointer type, you provided " +
2344 baseType.getName(false))
2345
2346 2893 type.getSpecifiers().isHeap = true;
2347
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 450 } else if (specifier->type == SpecifierNode::TY_COMPOSITION && node->isFieldType) {
2348
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 7 if (!type.is(TY_STRUCT))
2349
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 3 SOFT_ERROR_QT(specifier, SPECIFIER_AT_ILLEGAL_CONTEXT, "The compose specifier can only be used on plain struct fields")
2350 6 type.getSpecifiers().isComposition = true;
2351
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 443 } else if (specifier->type == SpecifierNode::TY_PUBLIC && (node->isFieldType || node->isGlobalType)) {
2352 443 type.getSpecifiers().isPublic = true;
2353 } else {
2354 ✗ const char *entryName = "local variable";
2355 ✗ if (node->isGlobalType)
2356 ✗ entryName = "global variable";
2357 ✗ else if (node->isFieldType)
2358 ✗ entryName = "field";
2359 ✗ else if (node->isParamType)
2360 ✗ entryName = "param";
2361 ✗ else if (node->isReturnType)
2362 ✗ entryName = "return variable";
2363 ✗ SOFT_ERROR_QT(specifier, SPECIFIER_AT_ILLEGAL_CONTEXT,
2364 "Cannot use this specifier on a " + std::string(entryName) + " definition")
2365 }
2366 }
2367 }
2368
2369
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 38594 return node->setEvaluatedSymbolType(type, manIdx);
2370 38604 }
2371
2372 38607 std::any TypeChecker::visitBaseDataType(BaseDataTypeNode *node) {
2373
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 38607 switch (node->type) {
2374 202 case BaseDataTypeNode::TYPE_DOUBLE:
2375
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 202 return node->setEvaluatedSymbolType(QualType(TY_DOUBLE), manIdx);
2376 2381 case BaseDataTypeNode::TYPE_INT:
2377
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 2381 return node->setEvaluatedSymbolType(QualType(TY_INT), manIdx);
2378 339 case BaseDataTypeNode::TYPE_SHORT:
2379
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 339 return node->setEvaluatedSymbolType(QualType(TY_SHORT), manIdx);
2380 8573 case BaseDataTypeNode::TYPE_LONG:
2381
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 8573 return node->setEvaluatedSymbolType(QualType(TY_LONG), manIdx);
2382 1323 case BaseDataTypeNode::TYPE_BYTE:
2383
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 1323 return node->setEvaluatedSymbolType(QualType(TY_BYTE), manIdx);
2384 3936 case BaseDataTypeNode::TYPE_CHAR:
2385
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 3936 return node->setEvaluatedSymbolType(QualType(TY_CHAR), manIdx);
2386 5847 case BaseDataTypeNode::TYPE_STRING:
2387
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 5847 return node->setEvaluatedSymbolType(QualType(TY_STRING), manIdx);
2388 2002 case BaseDataTypeNode::TYPE_BOOL:
2389
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 2002 return node->setEvaluatedSymbolType(QualType(TY_BOOL), manIdx);
2390 13529 case BaseDataTypeNode::TYPE_CUSTOM: {
2391
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 13529 const auto customType = std::any_cast<QualType>(visit(node->customDataType));
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 13529 HANDLE_UNRESOLVED_TYPE_QT(customType)
2393
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 13526 return node->setEvaluatedSymbolType(customType, manIdx);
2394 }
2395 127 case BaseDataTypeNode::TYPE_FUNCTION: {
2396
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 127 const auto functionType = std::any_cast<QualType>(visit(node->functionDataType));
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 127 HANDLE_UNRESOLVED_TYPE_QT(functionType)
2398
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 127 return node->setEvaluatedSymbolType(functionType, manIdx);
2399 }
2400 348 default:
2401
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 348 return node->setEvaluatedSymbolType(QualType(TY_DYN), manIdx);
2402 }
2403 }
2404
2405 13529 std::any TypeChecker::visitCustomDataType(CustomDataTypeNode *node) {
2406 // It is a struct type -> get the access scope
2407
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 13529 Scope *localAccessScope = accessScope ? accessScope : currentScope;
2408
2409
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 13529 const std::string firstFragment = node->typeNameFragments.front();
2410
2411 // Check this type requires a runtime module
2412
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 13529 if (node->typeNameFragments.size() == 1)
2413
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 54012 for (const auto &[typeName, runtimeModule] : TYPE_NAME_TO_RT_MODULE_MAPPING)
2414
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 40509 if (firstFragment == typeName && !sourceFile->isRT(runtimeModule))
2415
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 712 sourceFile->requestRuntimeModule(runtimeModule);
2416
2417 // Check if it is a generic type
2418 13529 bool isImported = node->typeNameFragments.size() > 1;
2419
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 13529 const QualType *genericType = rootScope->lookupGenericType(firstFragment);
2420
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 13529 if (!isImported && genericType) {
2421 // Take the concrete replacement type for the name of this generic type if available
2422 6582 QualType symbolType = *genericType;
2423
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 6582 if (typeMapping.contains(firstFragment))
2424
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 1596 symbolType = typeMapping.at(firstFragment);
2425
2426 // Check if the replacement is a String type
2427
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 6721 if (!isImported && symbolType.isStringObj() && !sourceFile->isStringRT())
2428
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 121 sourceFile->requestRuntimeModule(STRING_RT);
2429
2430
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 6582 return node->setEvaluatedSymbolType(symbolType, manIdx);
2431 }
2432
2433 // Check if the type exists in the exported names registry
2434
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 6947 const NameRegistryEntry *registryEntry = sourceFile->getNameRegistryEntry(node->fqTypeName);
2435
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 6947 if (!registryEntry)
2436
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 2 SOFT_ERROR_QT(node, UNKNOWN_DATATYPE, "Unknown datatype '" + node->fqTypeName + "'")
2437
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 6945 assert(registryEntry->targetEntry != nullptr && registryEntry->targetScope != nullptr);
2438 6945 SymbolTableEntry *entry = registryEntry->targetEntry;
2439
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 6945 assert(entry != nullptr);
2440 6945 entry->used = true;
2441 6945 localAccessScope = registryEntry->targetScope->parent;
2442
2443 // Get struct type
2444
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 6945 QualType entryType = entry->getQualType();
2445
2446 // Enums can early-return
2447
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 6945 if (entryType.is(TY_ENUM))
2448
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 69 return QualType(TY_INT);
2449
2450
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 6876 if (entryType.isOneOf({TY_STRUCT, TY_INTERFACE})) {
2451
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 6385 assert(dynamic_cast<DataTypeNode *>(node->parent->parent) != nullptr);
2452
2453 // Collect the concrete template types
2454 6385 bool allTemplateTypesConcrete = true;
2455 6385 QualTypeList templateTypes;
2456
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 6385 if (node->templateTypeLst) {
2457
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 1770 assert(localAccessScope != nullptr);
2458
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 1770 isImported = localAccessScope->isImportedBy(rootScope);
2459
2460
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 1770 templateTypes.reserve(node->templateTypeLst->dataTypes.size());
2461
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 4109 for (DataTypeNode *dataType : node->templateTypeLst->dataTypes) {
2462
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 2339 auto templateType = std::any_cast<QualType>(visit(dataType));
2463
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 2339 HANDLE_UNRESOLVED_TYPE_QT(templateType)
2464
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 2339 if (entryType.is(TY_GENERIC)) {
2465 ✗ allTemplateTypesConcrete = false;
2466
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 2339 } else if (isImported) {
2467 // Introduce the local type to the imported source file
2468
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 820 [[maybe_unused]] QualType importedType = mapLocalTypeToImportedScopeType(localAccessScope, templateType);
2469
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 820 assert(importedType.is(templateType.getSuperType()));
2470 }
2471
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 2339 templateTypes.push_back(templateType);
2472 }
2473
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 1770 entryType = entryType.getWithTemplateTypes(templateTypes);
2474 }
2475
2476 // Check if struct is defined before the current code location, if defined in the same source file
2477 6385 const CodeLoc &declCodeLoc = entry->declNode->codeLoc;
2478 6385 const CodeLoc &codeLoc = node->codeLoc;
2479
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 11500 if (declCodeLoc.sourceFile->filePath == codeLoc.sourceFile->filePath && declCodeLoc > codeLoc) {
2480
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 1 if (entryType.is(TY_STRUCT)) {
2481
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 3 SOFT_ERROR_QT(node, REFERENCED_UNDEFINED_STRUCT, "Structs must be defined before usage")
2482 } else {
2483 ✗ assert(entryType.is(TY_INTERFACE));
2484 ✗ SOFT_ERROR_QT(node, REFERENCED_UNDEFINED_INTERFACE, "Interfaces must be defined before usage")
2485 }
2486 }
2487
2488
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 6384 if (allTemplateTypesConcrete) { // Only do the next step, if we have concrete template types
2489 // Set the struct/interface instance to used, if found
2490 // Here, it is allowed to accept, that the struct/interface cannot be found, because there are self-referencing ones
2491
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 6384 if (entryType.is(TY_STRUCT)) {
2492
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 6264 const std::string structName = node->typeNameFragments.back();
2493
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 6264 if (Struct *spiceStruct = StructManager::match(localAccessScope, structName, templateTypes, node))
2494
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 6230 entryType = entryType.getWithBodyScope(spiceStruct->scope);
2495 6264 } else {
2496
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 120 assert(entryType.is(TY_INTERFACE));
2497
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 120 const std::string interfaceName = node->typeNameFragments.back();
2498
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 120 if (const Interface *spiceInterface = InterfaceManager::match(localAccessScope, interfaceName, templateTypes, node))
2499
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 120 entryType = entryType.getWithBodyScope(spiceInterface->scope);
2500 120 }
2501 }
2502
2503
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 6384 return node->setEvaluatedSymbolType(entryType, manIdx);
2504 6385 }
2505
2506
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 491 if (entryType.is(TY_ALIAS)) {
2507 // Get type of aliased type container entry
2508
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 491 const std::string aliasedContainerEntryName = entry->name + ALIAS_CONTAINER_SUFFIX;
2509
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 491 SymbolTableEntry *aliasedTypeContainerEntry = entry->scope->lookupStrict(aliasedContainerEntryName);
2510
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 491 assert(aliasedTypeContainerEntry != nullptr);
2511
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 491 return node->setEvaluatedSymbolType(aliasedTypeContainerEntry->getQualType(), manIdx);
2512 491 }
2513
2514 ✗ const bool isInvalid = entryType.is(TY_INVALID);
2515 ✗ SOFT_ERROR_QT(node, EXPECTED_TYPE, isInvalid ? "Used type before declared" : "Expected type, but got " + entryType.getName())
2516 13529 }
2517
2518 127 std::any TypeChecker::visitFunctionDataType(FunctionDataTypeNode *node) {
2519 // Visit return type
2520
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 127 QualType returnType(TY_DYN);
2521
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 127 if (node->isFunction) {
2522
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 26 returnType = std::any_cast<QualType>(visit(node->returnType));
2523
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 26 HANDLE_UNRESOLVED_TYPE_QT(returnType)
2524
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 26 if (returnType.is(TY_DYN))
2525 ✗ SOFT_ERROR_ER(node->returnType, UNEXPECTED_DYN_TYPE, "Function types cannot have return type dyn")
2526 }
2527
2528 // Visit param types
2529 127 QualTypeList paramTypes;
2530
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 127 if (const TypeLstNode *paramTypeListNode = node->paramTypeLst; paramTypeListNode != nullptr) {
2531
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 183 for (DataTypeNode *paramTypeNode : paramTypeListNode->dataTypes) {
2532
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 98 auto paramType = std::any_cast<QualType>(visit(paramTypeNode));
2533
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 98 HANDLE_UNRESOLVED_TYPE_QT(returnType)
2534
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 98 paramTypes.push_back(paramType);
2535 }
2536 }
2537
2538 // Build function type
2539
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 127 const SuperType superType = node->isFunction ? TY_FUNCTION : TY_PROCEDURE;
2540
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 127 const QualType functionType = QualType(superType).getWithFunctionParamAndReturnTypes(returnType, paramTypes);
2541
2542
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 127 return node->setEvaluatedSymbolType(functionType, manIdx);
2543 127 }
2544
2545 /**
2546 * Check if the the capture rules for async lambdas are enforced if the async attribute is set
2547 *
2548 * Only one capture with pointer type, pass-by-val is allowed, since only then we can store it in the second field of the
2549 * fat pointer and can ensure, that no stack variable is referenced inside the lambda.
2550 *
2551 * @param node Lambda base node
2552 * @param attrs Lambda attributes
2553 * @return False if the rules are violated, true otherwise
2554 */
2555 34 bool TypeChecker::checkAsyncLambdaCaptureRules(const LambdaBaseNode *node, const LambdaAttrNode *attrs) const {
2556 // If the async attribute is not set, we can return early
2557
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 98 if (!attrs || !attrs->attrLst->hasAttr(ATTR_ASYNC) || !attrs->attrLst->getAttrValueByName(ATTR_ASYNC)->boolValue)
2558 18 return true; // Not violated
2559
2560 // If we don't have any captures, we can return early
2561 16 const CaptureMap &captures = node->bodyScope->symbolTable.captures;
2562
2/2
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 16 if (captures.empty())
2563 10 return true; // Not violated
2564
2565 // Check for the capture rules
2566 6 if (const Capture &capture = captures.begin()->second;
2567
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 6 captures.size() > 1 || !capture.capturedSymbol->getQualType().isPtr() || capture.getMode() != BY_VALUE) {
2568 5 const auto warningMessage =
2569 "Async lambdas can only capture one pointer by value without storing captures in the caller stack frame, which can lead "
2570 "to bugs due to references, outliving the validity scope of the referenced variable.";
2571
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 5 const CompilerWarning warning(node->codeLoc, ASYNC_LAMBDA_CAPTURE_RULE_VIOLATION, warningMessage);
2572
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 5 currentScope->sourceFile->compilerOutput.warnings.push_back(warning);
2573 5 }
2574
2575 6 return false; // Violated
2576 }
2577
2578 72732 QualType TypeChecker::mapLocalTypeToImportedScopeType(const Scope *targetScope, const QualType &symbolType) const {
2579 // Skip all types, except structs
2580
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 72732 if (!symbolType.isBase(TY_STRUCT))
2581 63832 return symbolType;
2582
2583 // If the target scope is in the current source file, we can return the symbol type as is
2584 8900 SourceFile *targetSourceFile = targetScope->sourceFile;
2585
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 8900 if (targetSourceFile == sourceFile)
2586 4152 return symbolType;
2587
2588 // Match the scope of the symbol type against all scopes in the name registry of the target source file
2589
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 164597 for (const auto &entry : targetSourceFile->exportedNameRegistry | std::views::values)
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 164456 if (entry.targetEntry != nullptr && entry.targetEntry->getQualType().isBase(TY_STRUCT))
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 39006 for (const Struct *manifestation : *entry.targetEntry->declNode->getStructManifestations())
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 28954 if (manifestation->scope == symbolType.getBase().getBodyScope())
2593 4607 return symbolType;
2594
2595 // The target source file does not know about the struct at all
2596 // -> show it how to find the struct
2597
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 141 const std::string structName = symbolType.getBase().getSubType();
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 141 const NameRegistryEntry *origRegistryEntry = sourceFile->getNameRegistryEntry(structName);
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 141 assert(origRegistryEntry != nullptr);
2600 141 const uint64_t targetTypeId = origRegistryEntry->typeId;
2601 141 SymbolTableEntry *targetEntry = origRegistryEntry->targetEntry;
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 141 targetSourceFile->addNameRegistryEntry(structName, targetTypeId, targetEntry, origRegistryEntry->targetScope, false);
2603
2604 141 return symbolType;
2605 141 }
2606
2607 2706 QualType TypeChecker::mapImportedScopeTypeToLocalType(const Scope *sourceScope, const QualType &symbolType) const {
2608 // Skip all types, except structs
2609
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 2706 if (!symbolType.isBase(TY_STRUCT))
2610 367 return symbolType;
2611
2612 // If the source scope is in the current source file, we can return the symbol type as is
2613 2339 const SourceFile *sourceSourceFile = sourceScope->sourceFile;
2614
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 2339 if (sourceSourceFile == sourceFile)
2615 836 return symbolType;
2616
2617 // Match the scope of the symbol type against all scopes in the name registry of this source file
2618
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 1503 const QualType baseType = symbolType.getBase();
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 82805 for (const auto &entry : sourceFile->exportedNameRegistry | std::views::values)
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 82763 if (entry.targetEntry != nullptr && entry.targetEntry->getQualType().isBase(TY_STRUCT))
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 14046 for (const Struct *manifestation : *entry.targetEntry->declNode->getStructManifestations())
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 10273 if (manifestation->scope == baseType.getBodyScope())
2623 1461 return symbolType;
2624
2625 // This source file does not know about the struct at all
2626 // -> show it how to find the struct
2627
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 42 const NameRegistryEntry *origRegistryEntry = sourceSourceFile->getNameRegistryEntry(baseType.getSubType());
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 42 assert(origRegistryEntry != nullptr);
2629 42 const uint64_t typeId = origRegistryEntry->typeId;
2630 42 SymbolTableEntry *targetEntry = origRegistryEntry->targetEntry;
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 42 sourceFile->addNameRegistryEntry(baseType.getSubType(), typeId, targetEntry, origRegistryEntry->targetScope, false);
2632
2633 42 return symbolType;
2634 }
2635
2636 /**
2637 * Auto-dereference the given symbol type.
2638 * This process is NOT equivalent with getBase() because getBase() also removes e.g. array wrappers
2639 *
2640 * @param symbolType Input symbol type
2641 */
2642 16848 void TypeChecker::autoDeReference(QualType &symbolType) {
2643
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 31355 while (symbolType.isPtr() || symbolType.isRef())
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 14507 symbolType = symbolType.getContained();
2645 16848 }
2646
2647 /**
2648 * Returns the operator function list for the current manifestation and the given node
2649 *
2650 * @param node Node to retrieve the op fct pointer list from
2651 * @return Op fct pointer list
2652 */
2653 563 std::vector<const Function *> &TypeChecker::getOpFctPointers(ASTNode *node) const {
2654
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 563 assert(node->getOpFctPointers()->size() > manIdx);
2655 563 return node->getOpFctPointers()->at(manIdx);
2656 }
2657
2658 /**
2659 * Check if a function has been type-checked already. If not, request a revisit
2660 *
2661 * @param fct Function to check
2662 */
2663 15981 void TypeChecker::requestRevisitIfRequired(const Function *fct) const {
2664
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 15981 if (fct && !fct->alreadyTypeChecked && !fct->entry->scope->isImportedBy(rootScope))
2665 4192 fct->entry->scope->sourceFile->reVisitRequested = true;
2666 15981 }
2667
2668 /**
2669 * Add a soft error to the error list
2670 */
2671 25 void TypeChecker::softError(const ASTNode *node, const SemanticErrorType errorType, const std::string &message) const {
2672 25 resourceManager.errorManager.addSoftError(node, errorType, message);
2673 25 }
2674
2675 } // namespace spice::compiler
2676